Tying Area Drain Into Foundation Drain. Bad Ideal? - Building & Construction - DIY Chatroom Home Improvement Forum

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Old 10-13-2012, 12:03 PM   #1
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Tying area drain into foundation drain. Bad ideal?

Hello All,

I have a 8 foot retaining wall that ties into the house’s basement on one end and to an outside stairwell at the other end. The wall sits at a 3-4 foot negative grade to the yard. Instead of taking off many dump truck loads of soil I was looking to install an area drain about 10-20 feet out front the bite of the 90 degree angle made from the stair well as it intersects the retaining wall. The house and retaining wall have a foundation drain installed. My question is would it be OK to hook the area drain discharge into the foundation drain?

Thank You


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Old 10-13-2012, 07:08 PM   #2
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I personally think it's terrible idea, especially if the foundation drain leads to a sump pump. In a heavy storm with a power outage, the surface drain is going to put an un-needed load on the foundation.........


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Old 10-14-2012, 10:40 AM   #3
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never mix surface/gutter water with foundation drainage, not a good idea. Surface water can add to much flow to the drainage and undermine the foundation...
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Old 10-14-2012, 01:30 PM   #4
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Area drain to foundation drain

I thought this to be a bad ideal, just needed to bounce it off a few folks. Now how to redirect the area discharge. I either could drill a hole in the retaining wall or make the discharge run up hill ???

Any thoughts?
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