Lawn drainage systems are a valuable part of maintaining a healthy, functional landscape. They prevent water pooling, soil erosion, and damage to plants. They also can protect your property from flooding and structural issues.
Choosing the correct materials for your drainage system is essential. While perforated corrugated pipe is a popular choice, it is not always the best solution. This is especially true in areas with silty soil or tree roots.
In this article, we will discuss the best materials to keep clogs out of your outdoor drainage system.
Misconceptions About Perforated Corrugated Pipe
Many use perforated corrugated pipes in their drainage systems, thinking they will serve two purposes: first, they move large amounts of water through the drainage system, and second, they allow small amounts of water through the perforations to water the lawn.
This sounds good, but unfortunately, it doesn’t always work out this way.
Perforated corrugated pipes are less efficient at maintaining consistent water flow. Holes intended to let water out also allow silt and tree roots to get in. This leads to severe and persistent blockages that can render the entire system useless. The images below demonstrate the results.
What About Sock-Wrapped Perforated Corrugated Pipe?
At our regional hardware stores, you’ll find perforated corrugated pipe wrapped in a thin, cheesecloth-like fabric called a “sock.” The intent of a sock is to block fine particles and improve the functionality and lifespan of the pipe.
Although this fabric layer may seem like a good idea, it is not robust enough to prevent clogging entirely, especially in the silt-heavy soil we have in Rockford, IL area.
M2 Landscaping has a better solution when pipes must have perforations or holes.
For example, in our french drains, we use PVC pipe with holes drilled into it. We pair these with a commercial-grade geotextile fabric that offers far superior filtration and a layer of washed gravel.
We call it a French drain “burrito,” which is made up of commercial grade textile fabric wrapped around a layer of gravel, the perforated PVC pipe, and another layer of gravel.
This method keeps dirt and roots away from your drainage pipe. This maximizes performance and minimizes clogging, ensuring your drainage system is efficient for years.
What to Use Instead of Perforated Pipes
Whenever possible, we recommend using solid pipes for drainage solutions. Solid pipes are ideal for directing water from downspouts, ensuring efficient water flow without the risk of clogging.
We prefer PVC pipe because it is durable and puncture-resistant. It also prevents silt and roots from entering, enhancing the system’s longevity and performance.
Only use pipes with holes coupled with more extensive safeguards, such as the french drain burrito described above, to prevent clogs and maintain efficiency.
What to Do If Your Outdoor Drainage Pipe is Clogged
You can try to cut or snake through the blockages, but you will likely damage and cut through the corrugated pipe during the process. This would compromise the integrity of the system.
The most effective long-term solution is to replace the clogged corrugated pipe with a solid, preferably PVC, alternative. Swapping out the damaged pipe will ensure better water flow, less maintenance, and a longer-lasting drainage solution.
Ensure Reliable Drainage: Use Perforated Corrugated Pipe Sparingly
We hope this article has helped separate fact from fiction regarding perforated corrugated pipes. Although commonly used, they can cause more issues than they’re worth.
Silt and roots in corrugated pipes can wreak havoc on your entire drainage system. PVC and solid corrugated pipes provide a low-maintenance alternative that promotes optimal drainage and protects your landscape from water damage.
Do you need help selecting the proper drainage system for your yard? Please call our team for a consultation. You will receive expert advice and custom solutions to protect your property and stand the test of time.