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Old 12-03-2011, 05:05 PM   #1
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There's a hole under my foundation


I was looking at the waste pipe that leads out of my basement to the street. It had some wood pieces covering the access. When I poked a flashlight in there I noticed that the dirt under the foundation - where the pipe leaves the house - was gone and the was a hole a foot or so deeper running to the outside. It's probably about 8 feet below outside ground level (front yard). This cant be a good thing. Any thoughts about how to fix that? just fill in with rocks?
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Old 12-03-2011, 05:15 PM   #2
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Clean just the hole out the best you can, a bigger shop vac would work well then fill it with Hydrolic cement.
Fill just the area under the foundation.
The rest of the area needs to be kept asseable because there's a sewer clean out down there, that's why it was left open.

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Old 12-03-2011, 05:15 PM   #3
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Nope, you just cover with a concrete slab to keep people from falling in, and make sure that critters & bugs can not enter. There was a reason when the previous home owners did that. Is there a back-flow preventer on your sewage drain? If not, there should be, if you are in a area that experiences frequent flooding, or heavy rains.
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Old 12-03-2011, 05:45 PM   #4
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Ayuh,.... I'd put the wooden cover back over it,...

It ain't hurtin' a thing....
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Old 12-03-2011, 06:41 PM   #5
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Quote:
Originally Posted by gregzoll View Post
Nope, you just cover with a concrete slab to keep people from falling in, and make sure that critters & bugs can not enter. There was a reason when the previous home owners did that. Is there a back-flow preventer on your sewage drain? If not, there should be, if you are in a area that experiences frequent flooding, or heavy rains.
Thanks - Im in the NE and I get a lot of snow. I dont have a back-flow preventer. Ive seen one of those - Mike Holmes was demonstrating one on a show. I guess it would go right there when the cleanout is?
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Old 12-03-2011, 06:45 PM   #6
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The cleanout should be between it and the exit pipe. Reason being, is that you do not want to catch the flapper, if you have to use a cutter blade.

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