I'm in the process of replacing my gravel parking pad (50x40 with a #4 crusher run) to concrete in front of my house, which was built just last year. The initial installation of two buried downspouts didn't turn out as planned, but now the concrete crew is offering to fix the flow direction without charge, as long as I supply the materials. They plan to bury the downspouts about a foot deep this time. I'm wondering if PVC is the right choice for this installation, as I'm more inclined towards using corrugated for its cost effectiveness. Should I stick with PVC for durability? Am I overthinking this decision? Also, what exact materials do I need to buy? I'm in North Georgia with mild winters. Thanks in advance!
2 Answers
Using corrugated under concrete seems like a bad idea. Sure, it's cheaper and easier to work with, but PVC is way better for water flow and much lower maintenance. If you ever need to replace a pipe under concrete, it's a nightmare, and many pros discourage using corrugated for that reason. Put in the best PVC you can find; it’ll save you headaches later. Just measure your run and any turns you need for an accurate parts list!
Honestly, I would steer clear of corrugated pipe. It's prone to pooling water in the ridges and tends to collect debris more easily, which could lead to blockages. For your setup, make sure you grab downspout adapters for each downspout, some elbows for bends, and possibly an endcap with a grille or a drywell to manage any water overflow. It's all about keeping it clear in case debris builds up!