Tag Archives: residential drainage

Assembling 9 & 12 inch Landscaping Basins

Since we get a lot of questions about catch basins, we had John show you how to assemble a 9″ and 12″ landscaping basins.

He runs through all basin components, including decorative grating and debris filters. Learn your basin’s outlet sizes and placement options.

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New “Cathedral” Grating for NDS Mini Channel

Trench Drain Systems expanded its decorative offering for NDS Mini Channel with a new pattern of bronze and aluminum grating. The design, borrowed from Chester Cathedral in Chester, England, (shown below) is heel-proof, subdued and stylish.   It adds a solemn aesthetic to the hardscape and hints of a yearning for the innocence of old.

Chester Cathedral, previously Saint Werburgh’s Benedictine Abbey, was built in the 10th century on the site of a church founded in part by the infamous Lady Godiva.  The grating shown below was probably installed during a major rebuilding that occurred in the 1900s.

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Trench Grating seen at the Chester Cathedral in England

Trench Drain Systems adds the “Cathedral” grate to their decorative grating product line, which also includes a standard slotted grate and an oblong perforated pattern known as “Raindrops.”  All three patterns are available in bronze and aluminum.

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The bronze grates are available in a natural finish or a ground (polished) finish.

The aluminum grates, made from a corrosion resistant alloy, are available in 3 standard powder coatings as well as standard natural finish.   The standard powder coating colors are Sand, Granite and White.  Custom colors are available if your project requires that attention.

buy decorative grates, decorative mini channel, buy patio gratesEach grate lends itself well to drainage applications in elegant outdoor living spaces and swimming pool deck.  With two counter sunk holes allowing the grate to screw into the NDS Mini Channel, these grates are secure for even the most trafficked areas.

For involved drain designs, contact Trench Drain Systems at 610-638-1221 for help with your inquiry.  One of our trained sales professionals will be available to help you with your drainage questions.

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Mini Channel Plastic Grates are Prettier, Sturdier than Ever!

Mini Channel, the 3” plastic channel drain that has long been one of NDS’ most popular systems, now offers slotted plastic grates with a smoother, more decorative appeal.

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New mold die (top) next to old plastic grate (bottom)

NDS overhauled the design of slotted Mini Channel plastic grates following the release of decorative plastic grating for the 3” channel drain in 2013.

The new design eliminates hard edges and flashing made when using the old injection mold die. The new die gives the grates a smoother look and the Mini Channel system a cleaner appearance.

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Supporting ribs on new slotted grate (top) vs. old grate design (bottom)

The new Mini Channel grate pattern isn’t just for appearance’s sake, either. The new mold lengthens the plastic grate’s supporting ribs, which run perpendicular to the trench’s length (think hamburger, not hot dog). Supporting ribs increase a grate’s longevity under traffic and serve to make the plastic channel grate sturdier. The better a grate’s support structure, the less vehicle stress will affect it.

While the updated look on the Mini Channel won’t increase the channel drain’s overall load bearing capacity, it does make the grate more rigid.

It is important to point out that this improvement didn’t increase the cost of the Mini channel grating.  For an estimate on a Mini Channel system for your patio application, request pricing from one of the specialists at Trench Drain Systems today.

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Decorative Plastic Trench Grates Exist!

Ever since the first line of plastic trench drains emerged on the market, homeowners have welcomed the convenience of lightweight, affordable drainage systems. Easily purchased and installed, plastic drains bring patio and driveway drainage systems to an accessible level.

But a lingering flaw in plastic drainage systems has been the same simplicity that made them popular. The smallest plastic drains are about 1.5” wide and, though they come in up to three colors (usually gray, sand or white), are just narrow strip drains with no ornamental grating options. Larger drains between 2” – 4” wide come standard with plastic slotted grates that offered new colors but no design improvements.

Now NDS’ design efforts allow anyone to buy decorative plastic trench grates for new and preexisting NDS drain systems. The new Botanical and Wave designs are both beautiful. (see a side by side comparison below). While the pattern options are still developing, both styles come in trademark NDS colors of sand, black, green and gray.

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These grates are available for the 3” Mini Channel and the 4” Spee-D Channel systems, and they also work with 12” catch basins. Overall, I think the new decorative grates improve the 3” and 4” NDS profile drains. Let me show you why.

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NDS Mini Channel plastic drain system

The Mini Channel and Spee-D Channel profile drains feature honeycomb chambers within the wall. Spee-D Channel drains (not shown here) have thicker walls to accommodate their greater width, but the basic construction is the same. Profile drain grates rest on a lip in the channel body and are screwed into place.

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Mini Channel with Botanical grate (left), with Gray Slotted Grate (right).

Traditionally, either system’s slotted plastic grates rest fully within the channel and do not hide its edge (see above photo, right). Gray channel edges are visible on either side of plastic slotted Mini Channel or Spee-D Channel grates, a detail frequently commented on in upscale applications.

“[The visible channel border] has been a long running criticism of the Mini Channel and Spee-D Channel,” says Mike Schreiber, District Sales Manager at NDS.

Personally, I always felt this was a design flaw on the part of NDS not only because water can gather between the grate and the channel but also because it’s not aesthetically appealing. I’m pleased that NDS is taking steps to improve on the design.

NDS’ decorative grating (see above photo, left) is thicker. The grates hang over the channel walls. Once installed, all you see of the drainage system on the left is the Botanical pattern grate.

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The photo above shows how nicely the new decorative plastic grates fit into NDS profile drains. I do like these grates better because their added thickness makes the systems more durable. It also makes the grates sit higher in the channel, which means you’ll have to use special screws to secure the grates.

At first I was concerned that the additional height would tempt the Fates and lead to broken drains. However, NDS specifications recommend profile channels be recessed up to a quarter inch to improve drainage. Recessed drains also protect the channel from snow plows, which have been known to tear up grates. If there are any issues they will probably occur in preexisting drains that were not installed in a recess. But if the existing drains were installed properly there shouldn’t be a problem.

When decorative cast iron grates became a reality for homeowners, plastic drain manufacturers realized they were missing out on a large market. Contractors and homeowners saw cast iron grates as an upgrade to basic slotted plastic worth the extra cost, but decorative plastic was unsold real estate in the trench drain market. So far, only NDS has done anything to fill the market need.

Seeing an unmet market need, NDS began developing their line of decorative plastic grates a year ago. The manufacturer conducted surveys among customers and contractors to help choose which designs would be most popular before sending out small batches for trial runs. The end result is that homeowners can now buy Botanical and Wave pattern plastic grates for their profile drains and catch basins.

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A sampling of NDS’ decorative catch basin grates

The decorative grates are making in-roads on applications where drainage systems are visible such as commercial pools, patios and sidewalks. While they aren’t driving new sales – nobody who doesn’t need a trench drain is buying the grates just to have them – homeowners and contractors lean toward decorative plastic because of its improved aesthetics.

“I’m really starting to see the decorative channel take off,” Schreiber says.

Many NDS drains have a decorative iron option available (see our blog about decorative cast iron grating here). Plastic decorative patterns are still limited at the moment, but I expect options to expand once the idea of affordable plastic replacement grates sinks into the public’s mind. NDS, now busy incorporating new acquisitions such as KBI flow control and ADS drainage systems, is going to wait before expanding their decorative offerings.

Thanks for reading! Do you like the new decorative plastic grates?

Visit DrainageKits.com to buy replacement plastic grates for your NDS profile drains or catch basins. You can also call Trench Drain Systems at 610-638-1221 to speak with a trench drain specialist or leave a comment below!

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Infinity Drains: A New Era for the Shower Drain?

In our previous blog on stainless steel shower drains we touched on the growing trend of rimless showers. At the time, though, stainless steel was a high end solution and out of reach for many homeowners. The economy had consumers cutting back but the needs of the baby boomers were – and are – the same. It’s been a few years, but public interest in shower drainage systems never went away. Actually, I’ve seen the demand for information on shower drains increase.

I’m excited to say that shower drains are finally becoming a standardized product line. Some manufacturers make flanged shower drains from 28” to 70” long with six patterned grates. Others are more select, showing limited lengths on their stainless channels but offering artisanal grating options. True, custom stainless steel shower drains are still around in a big way, but they are becoming less necessary as standardized drains gain popularity. The setback isn’t in finding a drain anymore but in finding which drain works best.

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One of the newest concepts within the stainless steel drain market is that drain bodies no longer have to be stainless steel. One manufacturer, Infinity Drain, had the moxie to design a series of linear drain systems for showers that combine aspects of low profile channel drains and full-bodied stainless steel drain systems. Though their drainage systems have been used in patios, pools and driveways for some time, their products make the biggest mark on bathroom and shower drainage, a market previously dominated by expensive, custom stainless steel drains. Infinity Drain has opened a huge market for residential trench drains and trench drain users by offering not only full stainless steel systems but plastic-bodied linear drain systems with stainless steel grates, too.

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Infinity Drain has an edge over the competition. Unlike traditional center floor drains, which require a pitch in the floor in four different directions, Infinity Drain products allow the shower floor to be pitched in only one direction. The drain itself can be located anywhere in the shower stall because it features adjustable outlets. Eliminating restrictions on tile size or slab material within a shower, Infinity Drain systems allow for design flexibility.

The basic appeal of Infinity Drain is its simplicity. Take a look at the photos below. The AG Series, identified by its architectural slotted stainless steel grate, and the DG Series (stainless steel perforated grate) are the same system. Infinity Drain’s plastic-bodied AG and DG Series shower drains come in two widths: 38mm (1-1/2”) and 65mm (2-7/8”). While these grates and channels can be combined or cut to create custom lengths, Infinity Drain also acknowledged the current market standard by providing their linear drains in ready-to-assemble kits at set lengths.

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Another option is to “hide” the shower drain using the TIF Series (short for Tile in Frame). Like the AG and DG Series, it uses plastic channels that can be combined for any length of drain. Again, the only real difference here is the grating option. Instead of a slotted or perforated grate, the TIF Series uses a stainless steel grate frame that sits inside the channel. The frame supports a tile or solid insert to camouflage the drain. I think the result (shown below) is pretty cool.

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To those who prefer a stainless steel channel body but want design flexibility, Infinity Drain offers the AS Series (shown below), a full-bodied stainless drain that can be adapted for custom lengths that only comes in 2-7/8” wide. At only 1” tall, the channel is considered low profile and mostly used in shower areas with thin flooring; the shallow channel body also makes the AS Series grate unique to this product line. The AS grate has tightly grouped slot openings, meaning it has relatively less open surface area for water to drain through.

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There is an air of mystery surrounding the FX Series, a 2-3/4” wide stainless steel channel and grate system that comes in complete kits with a center outlet. Designed with fixed lengths, this system can be customized to a specific length or grate pattern by the manufacturer upon request, but this isn’t a do-it-yourself drain. Where would you be if all the bases weren’t covered?

Overall, if you are a homeowner and wanted a shower drain for your home, Infinity Drain has placed your goal within reach. They have taken the stainless steel market to an affordable level so you can obtain the quality of a stainless steel drain without dramatically affecting your pocketbook.

Now that more are more options on the market, I think it’s safe to say we are beginning to enter into a new shower age. With more reasonable options, the average consumer can re-design their bathrooms and showers to incorporate the trench drain and make it more accessible.

Trench Drain Systems is happy to have brought you this article. If you have a question about shower drains or any of the Infinity Drain product lines, send us an email. To discuss your application with one of our sales professionals, call us at 610-638-1221. 

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Patio and Driveway Drainage Solutions – Low Profile Drain (Part 1)

Just about any place in need of a drainage point can use catch basins (or one of their many variations) to evacuate water. Homeowners can use catch basins for driveway drainage, pools, patio point drains and landscape area drains. And, the installation techniques employed will be as diverse as the application.

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There are at least three companies that manufacture a 12” x 12” low profile adapter: ADS (American Drainage Systems), NDS (National Diversified Sales) and Old Castle (Formerly Carson Industries). All three companies have slightly differing product designs while maintaining the ability to accept a 12” x 12” x 1.25” thick grating. Two of these are compared below. At first glance, the ADS and NDS low profile adapters seem the same. And, from a strictly drainage functionality aspect, they are.

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Both products have a similar dimensioned housing to carry the grate. The grates used in each drain are actually interchangeable. Each product requires a twist-in adapter (3 – 4” and 6”) to interface with the drainage pipe. Both are black colored. Even the company acronyms are close. ADS? NDS? What’s the difference?

There are a few subtle differences between the two low profile adapters that become apparent when you hold them. The ADS product is made from Polyethylene (PE) whereas NDS makes their product from Polyvinyl Chloride (PVC). Parts made from polyethylene are a little more flexible and durable than PVC parts. PVC is easier to crack or break, especially in cold temperatures. But this characteristic may not have any bearing on longevity or performance, especially when the drain is installed in concrete.

The flip-side of that material analogy is that PVC, being a slightly stiffer material, gives the impression that the NDS product is a well designed, cleaner fitting drain body. Of course, the ADS drain body has the same design quality as the NDS product. However, the flexibility and feel of polyethylene may give an impression of it being an inferior product. This is certainly not the case, however.

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The pipe adapter is an important part of the low profile adapter. It is the link between the grate housing and the drain pipe. As we all know, there are many drain pipes that can be used for an outdoors application, depending on the amount of water anticipated. Generally, 3” and 4” diameter pipes will handle the flow of water experienced in a residential setting. The two adapters, shown above, are designed to attach to both pipe sizes, both PVC and corrugated PE. Both adapters work well with their respective drain housing. For higher volume flow applications, pipe adapters for 6” diameter pipes are available from both manufacturers.

When installed in a patio or driveway, the low profile drain will be hidden from sight and the only thing visible is the top grating. There are a number of products available made to fit both of these housings. Each manufacturer has their own set of standard plastic and cast iron slotted grates, which are affordable, functional and diverse. We will discuss more decorative grating options in our follow-up blog.

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Mini Channel’s Decorative Grating Options

National Diversified Sales (NDS) is a plastic trench drain manufacturer based out of California.  They have a fantastic selection of plastic trench drain systems that are used in residential and commercial applications.  The 3 inch-wide Mini Channel is popular because its honeycomb design and inexpensive price appeals to contractors and homeowners.  However, a big part of the drainage system’s popularity comes from the number of complementary grating options offered. 

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The standard grate offered with the Mini Channel is still a 3 foot long plastic grate, which is offered in six colors (gray, white, green, black, red, and sand).  Gray was the go-to color in the past, but customers are now branching out for colors that blend with the hardscaping; sand and white plastic grates, especially, are gaining popularity.

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For those with a more discriminating taste, NDS offers two slotted brass grating options.   The 1 foot long brass grates come in a satin or polished finish. Besides being simple, shiny, and elegant, they contain chamfered holes for optional screw placement, which helps keep the grates secured in the channel.

Another option available for Mini Channel customers is decorative cast iron grates.  These aren’t the ordinary slotted grates of yester-year; the cast iron grating product lines below illustrate the beautiful side of a functional product that was previously considered a necessary – and ugly – evil by many homeowners.  (Note:  these grates are shown with a baked-on oil finish unless otherwise specified but come standard in an unfinished cast iron.)

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Currently, five styles of cast iron grates work with NDS’ Mini Channel system: the Acanthus, Interlaken, Carbochon, Locust and the Minnione.  There are a few basic differences between these four Mini Channel grates.  The Interlaken is an intricate geometrical pattern while the Minnione has a flowing design.  The Locust pattern evokes the feel of leaves blowing in the wind.  Meanwhile, Carbochon’s open area is only accentuated by its bold pattern.

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Style aside, the most noteworthy difference in the grates is length. The Interlaken (11″ long) is an inch shorter than the Minnione and Locust grates (12″ long).  The Carbochon (14” long) outdoes all three grates by inches.  I think the length of the grates is important because it determines what you can do with the design of the run.  Unfortunately, it is often overlooked during the planning stage and leads to extra work later on.

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Another difference in the grates is how they fit into the Mini Channel.   Take a look at the photo above. Minnione, the thinnest grate, does not rest in the channel with the same depth that Interlaken, Locust and Carbochon do.  While the other grates are cast with tongues that fit snugly into the Mini Channel’s patented “flying buttress” lip, one gets the feeling that the Minnione sits on top of the drain rather than resting inside it.

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The foundry uses cast iron as the standard material when making these decorative grates but also manufactures cast brass, bronze and aluminum grating for an additional cost. We should note that cast iron grates are uncoated (raw) and will form a rust coating over time.  The rusting process, when reproduced artificially to save time, is called a baked-on oil finish.  I find the resulting patina charming.

If your application doesn’t support this view, though, consider painting with an epoxy or powder coating. The powder coating process smoothes out the natural texture of the cast iron grates, giving them a softer, less metallic look.  You can really feel the difference between the painted and baked-on oil finishes; the process encased these grates in paint rather than changing their outer layers.

Let me just demonstrate the difference between the two available finishes in another way.  Look at the Interlaken grates shown below:  in terms of color, they are very similar.  But, if you look closer you can see the different shine, the thickly coated surface of the grate on the right.  It’s been powder coated.  The grate on the left, though, has a baked-on oil finish.   I’ll leave you to decide which one you like better.  For additional information on cast iron grating finishes, visit our “Cast Iron Finishing Options” blog.

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Cost is all in a person’s perspective, especially when talking about trench drain products. A simple plastic grate that comes in six basic colors is available for a very low price per foot. NDS’ brass grate, a beautiful, no-hassle solution for those still worried about rust or decor, is the most expensive. The cast iron grates, which add style and variety, come for the more moderate price that falls somewhere in between and have beautiful finish options. They are the true extra mile, the art to efficiency, and are the balance if a cost-efficient and stylish grate is desired.

For cut sheets and literature on the products discussed here, download the available drawings embedded throughout the article.  If you’d like a quote on a Mini Channel drain system or decorative cast iron grating, contact Trench Drain Systems (TDS) at 610-638-1221 or send an email.

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Plastic Trench Drain Comparison – Zurn Z886 vs. NDS Dura Slope

Part 1.  Channel Body Comparison

There are many plastic trench drain manufacturers in the marketplace.  By far, the top two manufacturers are Zurn Industries and National Diversified Sales (NDS). Zurn is a world class plumbing supply manufacturer headquartered in Erie, PA.  One of the four business grouping Zurn has is Drainage Products.  The Perma-Trench products represent the plastic trench drain component of their drainage products offering.  NDS is a manufacturer of plastic components used in storm water management, irrigation, water flow control and landscape water and root management.  They are headquartered in Woodland Hills, CA.

These two very different companies find an overlapping marketplace with their pre-sloped, high density polyethylene product lines.  For NDS, their Dura Slope product line was an outgrowth of their landscape drainage product line development.  This product was meant to be a high performing drainage product used in larger landscape and residential projects.

The Zurn Perma-Trench products (all high density polyethylene) were developed as an economical alternative to polymer concrete trench drain for industrial drainage applications.  The work horse of the Zurn trench drain product line is their 4” wide channel call Z886.  Both Dura Slope and Z886 have similarities in channel composition and drainage capabilities.  However, each has strengths which should be considered when choosing a product for a particular application.

Dimensional Comparison – Above is a photo comparing the Zurn Z886 and Dura Slope channel bodies as received from our supplier.   At first glance, the main difference you see when comparing two is the length.  The Zurn product is 2 meters (80”) in length while Dura Slope is 4 feet (48”).  Next, you will notice that the Dura Slope has a black plastic cover attached with locking devices.  The Zurn channel has 4 metal “spreading bars” which are used to keep the channel walls from flexing during installation.  Dura Slope’s black cover helps to prevent channel compression during concrete placement, but also works to keep channel free from debris during drain installation.   As a side benefit, the locking devices come free with the Dura Slope channel.

The channel width, slope and colour are relatively similar between these two products.  And likewise, both products can achieve continual slopes of 100 feet (96 in the case of Dura Slope) and have the deepest channel section being 12”.   Look at the close up photo comparing the two below.

Flow Data Comparison – The flow data reported on the Zurn product is 20-25% higher than that reported on similar invert depth Dura Slope channels.  This didn’t seem reasonable since both channels are so similar.  To investigate the disparity, I compared Z886 and Dura Slope channels of similar depth. (See Photo Above)

Flow rate is a function of the cross-sectional area of the channel, the channel slope and the channel material.  As the material in each is HDPE, we can ignore this as a factor of the flow difference seen.  The cross sectional area of each channel seemed to be similar.  Z886 is a full 4” wide with a rounded section at the bottom.  Dura Slope has a top width of 4.5”, but, then goes into a taper to the rounded bottom which has a 4” diameter.  Maybe, Zurn has slightly more area…maybe.  Could the extra 0.05% slope of the Z886 explain the 20% greater flow data?  I don’t think so.

Upon closer analysis, I learned that Zurn’s technical data defines the invert depth of a channel to be the distance between the top of the grate and the lowest point in the channel.  Dura Slope, on the other hand, measures the invert depth as the distance from the bottom of the grate to the lowest channel point. The resulting 0.75” difference has an effect on the overall cross-sectional area calculation, and in turn, affects the flow calculation.  In essence, Zurn measures flow of the channel without a grate while Dura Slope recognizes that you will have a grate in the trench while it is in full flow.  When each company’s data is compared after adjusting for this depth difference, Zurn shows only an 8% higher flow rate than Dura Slope.

Channel Feature Comparisons – Other channel features worth noting include built in rebar clips and anchors, built-in bottom outlets, channel connections and end outlets.  Both Zurn and Dura Slope products have rebar clips built into the channel body.  (See above.)  Rebar clips are used to help suspend the channel within an excavated trench during installation.  Rebar sections are generally hammered into the ground.  The purpose of the rebar clip is to attach the channel to the embedded rebar.  The rebar clip designs for the Z886 and Dura Slope channels are different but equally functional.   Z886 has a side clipping design while Dura Slope has a clip opening that is perpendicular to the channel.  Both clips have tie wire holes.  The Z886 wire tie hole is in the outer most side of the clip.

Rebar clips are additionally helpful to stabilize and secure the channel after it has been set in concrete.  One complaint I’ve heard about plastic trench drain channels (as opposed to polymer concrete) is that,  over time, there is a tendency for the channels to separate from the hardened concrete, leaving a gap that can fill with debris and pinching the channel opening. In comparison to polymer concrete channels, this is probably a true statement, though maybe a little misleading.  To help secure the channel firmly into the concrete and minimize this separation, Zurn has designed additional anchor posts at each rib point of the channel.  Dura Slope doesn’t have additional anchors at their rib points.  However, the HDPE used to make the Dura Slope product seems to be more rigid, maybe because of added fillers used in the plastic.

A feature of every Dura Slope channel is a built-in bottom outlet. This gives the contractor flexibility in deciding the drainage points of a long run or the convenience of not having to order a separate adapter if a bottom outlet is required.  To use the bottom outlet, a 4” diameter hole bit is used to drill out an opening in the channel within the bottom outlet.  Thereafter, a 4” schedule 40 pipe hub or Sch. 40 hub insert (DS-126) can be attached.

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Zurn’s Z886 bottom outlet design also gives you a degree of flexibility.  The Z886 doesn’t have a built-in bottom outlet with each channel.  However, separate bottom outlets are available in 2”, 3”, 4” and 6” diameters.  These can be installed anywhere along the channel bottom which allow for more complex drainage configurations.

channel drain connection

Both Z886 and Dura Slope have tongue and groove joint connections.  They allow for quick and easy installation.  Dura Slope has a trademarked DuraLoc TM design which snaps to lock the channels together once the tongue has been properly inserted into the groove.  I am impressed to see how quickly these go together and how straight the channels remain after connection.

The Zurn tongue and groove joint connection slides together easy enough.  But, it just isn’t as user-friendly as the Dura Slope product.  To secure the joints into place, you are required to place a screw at each side of the joint so you can mechanically connect the channels.

One of the selling points for the Z886 channel in Zurn literature is the fast installation times due to the tongue and groove connection and the 80” channel lengths.  The longer channel lengths are thought to reduce the hassle of connecting channel (which is what takes time in setting drain).  When compared to traditional polymer concrete systems, this may be true.

However, you cannot make the same inference when comparing Dura Slope and Z886.  I feel the quick locking channel design feature of Dura Slope overshadows any installation advantage that the Z886 product may have despite the longer channel size.  Dura Slope is just easier and quicker to assemble.

While I’m on the soap box commenting about channel length, I want to point out that long channel lengths are best when you have larger, longer channel runs.  For smaller projects, you may not have need for a full 80” section.  For common trench drain applications, such as a 12 ft or 16 ft wide driveway drain, a channel with a 4 foot length would be optimal.  If an 80” channel was to be used on this project, a portion of the channel would have to be cut and discarded.  As the project becomes larger in scope, a certain amount of flexibility is inherited.  Lengths can be changed easier in the field to accommodate the channel increment.  And with larger projects, if a channel is to be cut and discarded, it is a much smaller percent of the project cost than it would be in a small residential project.  This is not to infer that smaller length channels shouldn’t be used in larger drainage projects.  Smaller channels can be quicker to install, and they are easier to store.

One feature that aids Z886 in large drainage projects is its extender panels.  These are wall panels that can be added to a channel to allow the drain to be installed at greater depths or with longer continual sloping runs.  Dura Slope doesn’t offer this feature.

A final feature to compare between these two systems are end caps or end outlets. Both products have caps and outlets made from HDPE, which makes it easy to trim and drill out in the field using standard power tools. Both have a design that allows the outlet to attach by inserting into a channel groove and the end cap (shallow end) to be attached with screws. Zurn’s outlets are supplied with screws, while Dura Slope requires you to purchase these separately. There will be an excess portion of the cap which needs to be removed, with both systems, to make the cap level with grade. Dura Slope end cap design shows a depth scale that corresponds with the channel you are using as the last channel to make trimming easier.  Zurn’s end cap design has a saddle that rests within the channel to make screw mounting easier during installation.

To recap, below is a quick comparison of the Z886 and Dura Slope with respect to channel features and geometry.

Parting Comments – If we are to look solely at the merits of each channel, I would say that Dura Slope has more to offer both home owners and contractors.  The Dura Slope was designed to be easy to handle, quicker to install, with minimal assembly required.  I personally like the shorter channel lengths because they fit on my shelves and are much easier to ship to my customers.   I feel the plastic used to make the Dura Slope is stiffer than that used in Z886, which leads to straighter channel installations and less channel-concrete separation.

Having said that, I acknowledge that the Z886 channel has advantages over Dura Slope in applications where long, continuous slopes are required.  By using extender panels, runs as long as 300 feet of continual sloping drain are achievable.  In addition, Z886 has a wider variety of outlet diameter options which can help in more complex drainage projects.  This is one of the reasons why you will see Zurn Z886 specified on big jobs more often than you will see Dura Slope.

The channel component of any trench drain is important when considering the engineering properties and installation.  But this is just half of trench drain.  The portion of the drain that people see after installation is the grate.  Increasingly, the channel grating is becoming the focal point of the trench drain selection process.  Aesthetics, ADA compliance, load capability and corrosion resistance are all properties to consider when selecting a trench drain grate.  Part 2 of this report will continue the discussion on Zurn’s Z886 and NDS Dura Slope by focusing on trench drain grate options available from each.

Trench Drain Systems is a company which specializes in providing quick solutions to drainage problems.  For more information about the trench drain products discussed in this article, visit the website or call 610-638-1221 for immediate assistance.

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The Catch Basin Medley: Know Your Options

buy plastic grates online, buy 5" plastic grates, buy nds drains online, 5 inch pro series buy nowThe size, shape and material used to make a catch basin vary based on its intended application.  Round plastic catch basins are smaller and usually found in residential applications while larger, cement basins are used for heavier duty projects.  Many residential basins – even those on the larger side of the scale – feature optional decorative grating to make a potentially ugly drainage product look more appealing and less intrusive.

Over time, our sister blog has written several useful articles on the applications, sizes, installation methods and features of catch basins.  They are listed with excerpts below:

Catch Basins and Downspout Drainage

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“A driveway that slopes into a garage can direct storm water toward the house.  Trench drain can be used to remedy this drainage problem by helping to redirect water away from the garage or living space.  However, a big contributor to the water problem can also be downspout water.  Driveways often have downspouts that drain roof water directly onto the pavement.  If the driveway doesn’t slope away from the house or allow for adequate drainage, water pooling or flooding can occur.  This article is about how simple catch basins can help to re-route downspout water…”

Large Residential Catch Basin Options

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“There are a number of options available for landscape contractors and homeowners who need a large catch basin.  By large, I am referring to a basin with a maximum size of 2’ x 2’.  A catch basin of this size (2’ x 2’) is at the boundary that separates commercial products from residential products.  Basins larger than 2’ x 2’ are generally made with the intention of being exposed to heavy traffic.  This article will be discussing some of the “large” catch basin products available for residential application…”

 Residential Downspout Catch Basin Installation

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“I like to think of a catch basin as the “first line of defense” in cleaning up rain water and drainage pipes.  It is common for homeowners to put their downspout water into a pipe that then travels out to the street or a back yard location.  This often leads to clogged drainage pipes.  Over time, leaves, sticks and sand particulate from roofing shingles will build up in the pipe to gradually reduce drainage efficiency.  A catch basin helps to reduce this problem in two ways.  First, the grating that covers the basin filters out the coarse debris that finds its way through the downspout, thus “catching” the biggest contributing factor to clogged drain pipes…” 

To purchase any of the catch basins in these blogs, visit our online store or contact Trench Drain Systems at 610-638-1221.

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Extruded Channel Drains (Part 2)

Last entry discussed differences and commonality between extruded channel drains manufactured by NDS and Stegmeier. I wanted to continue along this path and discuss two other very similar extruded products — NDS’s Spee-D Channel and Stegmeier’s Flowmaster. The Flowmaster is marketed as a professional grade channel drain for swimming pool decks. The Spee-D Channel is sold as a general purpose drain for residential applications that include driveways, paver patios and pool decks. Let’s first look at the two products side by side. NDS-Stegmeier-Comparison-pr1-300x199NDS Spee-D Channel is to the left while Stegmeier’s Flowmaster is to the right. Both channel drains have a similar cross section and have similar geometry. Both are about 5 inches wide and 3 inches deep. Both products are made from extruded PVC.

Two things stand out in the photo above. First, the wall thickness of the plastic is greater in the Stegmeier product. They also have a smaller amount of open air space than does the NDS product. This makes the Flowmaster channel much sturdier than the Spee-D channel. You can feel the difference when you hold the product. Normally, I don’t like to recommend extruded channel drains in regions that see frigid temperatures because of my concern for cracking during freezing and thawing. I think the Spee-D channel is susceptible to rapid deterioration in this environment. The Flowmaster channel drain stands a much better chance of holding up in colder regions because of the more rugged wall design.

The second apparent difference between these two products is the design of the grate rails. The Stegmeier product has a curved rail that requires a specially designed grate. The NDS product has a straight rail. This may not be much of a difference. But, I think the NDS design makes grate replacement and removal easier. Their design also lends itself to easy adaptation by other grate manufacturers.

Let’s look at some of the grating options of the two products. Below you see the Flowmaster with an aluminum slotted grate. It snaps into place wonderfully. You can buy this in three colors (silver, tan and white). This grate also comes in plastic (again three colors). However, if you wanted to use this product for anything other than a pool or deck application, you would have a difficult time with the grate. I feel the grate would compress or crush a little under car tire applications, for instance. Maybe I am trying to “over apply” this product.

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On the other hand, The NDS Spee-D channel has a variety of structural foam grating that is capable of small automotive traffic. If you want ornamental cast iron grating, it is available from Iron Age Designs. Maybe, the Spee-D channel doesn’t look as good as the Flowmaster in a pool deck application, but it has a broader residential appeal due to the grating options.

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Another difference between these two products is in the way they couple. The photo below shows NDS (left) and its well-engineered channel coupler versus Stegmeier’s simple design internal coupler. I don’t know which is best. I think the Stegmeier coupler is simple and gives a sturdier connection. I think the NDS system is neat looking, though. And my gut feeling is that the Stegmeier coupler will allow water to seep into the wall cells easier than the NDS coupler. It’s just my gut feeling folks!!

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I guess the last thing to talk about is pricing and availability. List prices of both channels are comparable. However, the popular home improvement stores usually carry the Spee-D channel at well below list pricing. Grating is where the pricing differences will be felt. The

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Flowmaster grates are generally more expensive than the “off the shelf” Spee-D channel grate. However, you will most likely have to special order any Spee-D channel grate if you don’t want gray plastic. Cast Iron grates for Spee-D channel can be ordered online in raw iron or with a Baked-on oil Finish. The Stegmeier channel products are sold in pool supply stores and by special order. Their distribution network is not as well developed as NDS. If you like the Flowmaster product line, and can’t find a dealer, you can purchase this product over the internet.

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