Turns don’t need to be at 22.5, 45 or 90 degree angles.Bends for easy turns and easy connections.Corrugated vs PVC Drain Pipe – Pros and Cons Corrugated Pros Let’s take a look a few pros and cons of corrugated vs pvc pipe. Here’s a quick video overview, followed by our more detailed written analysis where I was singing a bit different tune than in the video: Which one is best to use depends on your circumstances, budget and ambition. My options for the pipe led me to the two main contenders: corrugated or 4″ solid pvc. In short, I had two sections of french drains that needed perforated corrugated pipe or perforated pvc pipe and another 50 to 70 feet of non-perforated pipe to carry the water away. By the way, if this article is getting you excited more more scintillating drainage content, check out the excellent article Phil wrote on how to install a channel drain. Just kidding neighbor! Actually, it exits on our property into a rock and soil basin in our yard which percolates into the soil. “While I was at it” (coined the most expensive phrase in home improvement by our top-notch writer Phil), I decided to add a french drain by our house and several additional surface drains – all tying in to a 4″ pvc pipe exiting our retaining wall, where the deluge of water goes on to flood our neighbor’s house. A peek inside 4″ perforated pvc pipe for a french drain. It was clear I needed to add another leg of french drain here.

After digging down what felt like 20 feet, I found a soupy mess that appeared to be about 99% water, 1% dirt. Unfortunately, my suspicions were confirmed. After some unusually heavy rains in our normally bone-dry climate, I decided to dig up that portion of the wall to check moisture levels. However, I had a sneaking suspicion that a short length of the wall without drains was going to be a problem. When we originally installed a retaining wall in our backyard, a french drain and some surface drain pipes were put in on the main length of the wall. I did a lot of research before diving into my project, and hopefully the insights I gained will help you with your landscape drainage or french drain project. The black corrugated pipe seemed like a cheaper and easier option, but something told me I shouldn’t dismiss using schedule 40 solid, 4″ pvc pipe. One question I grappled with was whether to use corrugated vs solid pipe. One section of french drain was by a retaining wall, and another by a spot on our home that catches a lot of runoff. I recently tackled installing some french drains and exterior landscape drains to help direct the many pints of water that sometimes fall from the sky here in San Diego.

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