Lee's Summit, MO: Basement Flood + Permanent Drainage Solution

We were called out to this beautiful home in Lee's Summit, MO to provide a solution for their flooding basement. Upon inspection, it became clear that the old drainage solution was not adequate to remove enough water from the yard during a heavy rain. Our proposed solution involves replacing the cheap perforated pipe, installing larger and multiple pipes, and even a French drain around problematic basement walls.
If you're in the Lee's Summit, MO area and want us to come out and give our opinion or a quote, call us: 816-826-8794
Visit our website: highflowdrainagesolutions.com

[@High-Flow-Drainage-Solutions]

I forgot to include an interesting piece of information the homeowner shared with us. A pipe scope performed by a plumber revealed a number of spots in the system that had negative slope (AKA, bellies), which leads to a slower flow rate and ultimately failure due to debris build up in the pipe.

[@SlackerU]

I imagine that swale works quite well. I'd like to see their Rational-Method layout of that depression to know how much rainfall they're dealing with. Also as of 2022 if that is a build prior to 2018 then you should have access to the soil-elevation levels online by using the USGS NationalMap where you can create/see the soil's slope profile on a graph, you literally click in the line you want to see. The 2020, & 2022 elevation data are $200 each from the large city that controls my county. 4 inch corrugated requires 2.8% slope to self-clean but nobody seems to comply with the ADS Drainage Handbook.

[@High-Flow-Drainage-Solutions]

Yes, thankfully there is already a swale running through the backyard that we can utilize, or else this situation would be far worse and much more costly to solve. The main issue here is the company that performed the drainage system install was way out of league, thus leading to many basic mistakes and a completely inadequately sized/equipped system (though I'm sure they meant well). And yes few people that use single wall corrugated understand how and when to use it. Fewer understand that it can actually be a very useful material for certain situations if installed properly. That being said, the majority of the non-perforated pipe we install is HDPE, dual wall corrugated.

[@SlackerU]

​@@High-Flow-Drainage-Solutions I almost did use dual-wall but they are almost the same price as PVC now. IMO dual-wall is more easily damaged by a shovel than SDR-35 so on shallow-digs it might be better to use the harder-materials to warn the random-digger-accident. I also had a situation where 10ft or more of a 8-inch dual-wall inlet floated up out of the ground. It took 130lbs of weight to keep it in the 18-inch-deep sump. Literally sticking almost straight up in a 3.5-inch per-hour storm, very flexible stuff, it's secured now though.