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 Help Determining Drainage System
Author: Nixonian (NY)

Here's some background information before I ask my question.

I've owned my current residence for four years. Six months after moving in the basement flooded despite promises from the realtor and home owner that flooding was never an issue. The flooding occured another two times since then. Around $1,000 was spent on plumbers both local and chain companies. Each had different ideas on what the problem could be, but no concrete solution. After making some calls to city hall and climbing the political ladder, the city sewer inspector came over and within two minutes said we needed to cap the sewer lateral (the yellow plug you see in the sump pit). An $8 cap solved the problem. The joys of being a first time home owner!

Knock on wood. The basment hasn't flooded since we capped the lateral. The sump pump has been working overtime during the spring and early fall and keeeps up with the load the past two years. The water level gets within an 1/8" of the basement floor and the pump kicks on.

My question is what type of drainage system do I have? There's a reservior with three pipes. One empties into the sump pit, one comes from the ground verically and the other horizontally. In the second photo you see a hole in the concrete. This is where the reservior pipe empties out of but there's another water source coming from the left.

Any help would be greatly appreciated. There's a toliet, sink, washer and shower in the basement. The toilet, sink and washer have no affect on the sump pit or reservior. The shower apparently doesn't drain properly but, again, it seems to have no affect on the water level in the pit.

So what am I working with?






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 Re: Help Determining Drainage System
Author: hj (AZ)

Your photos do NOT show the whole picture. What is the round thing in the bottom of the pit? Is that a sump pump? You appear to have a "cobbled up mess". IF that yellow plug is sealing a drain line, then it either was an uncapped cleanout or a drain for the pit. And, if it was the source of the flooding, AND you have a shower and toilet in the basement, you should still be flooding, except it should come from the shower or toilet, unless it was just a minor backflow. If so, then you are still in danger of a flood, under the right conditions. The "how to stop it" is easy, but actually doing it will be expensive.

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