columbus - Professional Gutter & Drain Ltd.

SDR 35 Vs. Schedule 40: The Give and Take

Downspout Drain Lines: SDR 35 or Schedule 40?

Should I use SDR 35 or Schedule 40 for my underground downspout and sump-pump drain lines? This question has been asked more than a few times and in this short article we will go over which should be used. Initially Schedule 40 looks better on paper. All around it is stronger, harder to crush. Should this not be the obvious choice? I mean when it comes down to it you always want to pick the stronger material, right? To answer that question, we must first look at what strength means in this context and how it applies. Hold your conclusions until the end and let’s get into it.

The Strength of Flexibility

When we think of strength, we usually go right to the core of what strength is, which can take more punishment? While this may lead us to believe that Schedule 40 is a better choice we must take a deeper look at the two types. SDR 35, or standard dimension ratio, was designed with the intent of being more flexible than Schedule 40. Compromising structural integrity for flexibility. Doing this does not seem like it would go along with what most people would want. Why would anyone want the line to have less strength? What would be the benefit? The quick answer is flexibility. Mother nature is always shifting and settling. Since these lines are installed underground, they will be subject to these changes. Here is where the flexibility of SDR 35 outweighs the strength of Schedule 40. SDR 35 will bend with the shifting and settling. Having a higher flex tolerance means less breaks from the soil conditions.

To the Victor Goes the Spoils

So, in the long run we recommend using SDR 35 on the exterior of your home. The flexible nature of the line will help keep the line from breaking from these adverse conditions. Additionally, these lines will utilize a solvent weld or gasket to ensure the connection points are secure. Completely closing the system between the entry and exit points will help keep roots from infiltrating your line. Furthermore SDR 35 is less susceptible to the elements. When installed correctly it is one of the top choices available on the market today! So, make sure you are protecting your investment with a small investment in a superior quality line.

Drain service columbus ohio

Drain Service columbus ohio

I couldnt be happier. I have recommended you to friends and neighbors.They had great service too. Thanks
Ben B.

gutter cleaning and repair

If you believe you have a clogged downspout drain you can easily verify your thought by testing the drain with your garden hose, this will let you know if you need drain cleaning. If the drain is 100% clogged then it shouldn’t take long before you see water start to back up and overflow out of the top of the drain.

If your drain is partially blocked then you might see a trickle of water out of the exit of the pipe and some overflowing at the top of the drain. Because a garden hose is usually the only thing you can test with and it will only provide a limited flow of water into the drain there is another possibility. Your drain may be partially blocked and not overflow except for in the instance of a heavy rain that can put a higher volume of water into your drain system then what was possible with a standard garden hose. If you suspect this is your problem the only way to know for sure is to have a drain camera inspection completed or be lucky enough to be in the right place watching the drain the next time you get a heavy down pour. We specialize in exterior drains only, therefore we have the heavy duty equipment necessary to trench through tough terrain including roots.