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Old 09-15-2011, 08:34 AM   #1
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French drain or perimeter drain


I know this seems like a long shot, but is there a way to know if I have a french drain or perimeter drain around my home? I dont have any water infiltration in my basement, never have (knock on wood). I may try to call the previosu owner, but he may have moved away, Ill have to track him down.



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Old 09-15-2011, 11:06 AM   #2
Is this wire Hot?
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Hi sb, I'm no expert but can you just grab a shovel and see what's under the dirt outside your foundation? Aren't these drains just below ground level?

Also, just curious, why you need to know if you have no problems or leaks?


Last edited by Oh-Fudge; 09-15-2011 at 01:11 PM.
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Old 09-15-2011, 11:09 AM   #3
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If you have pipes that connect to your sump pump, there is a high probability you have a perimeter drain. If you want to be sure, you need to excavate, which is a lot of work if you have a basement, which it sounds like you do. Of course, if you have a walkout basement, start on that side. There are arcane techniques for finding underground piping like subsurface penetrating radar, but a good old shovel should do the job in your case.
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Old 09-15-2011, 12:51 PM   #4
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ok, thats what I thought, meaning Id have to dig.

No water issues at all, just wondering. I have a basement window, and an old window well, will be replacing both. Wanted to ensure the water that accumulates in the well can evacuate correctly. so far it always has, just wanted to know if theres an easy way to see if I had a perimeter drain.

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Old 09-16-2011, 09:52 AM   #5
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A long shot perhaps, but you might check with your local building department. It may be that code specifies what must be installed. Where I live, virtually no new construction homes (including mine) have an actual French drain. A perimeter drain with the flexible, perforated pipe is much easier and cheaper to install.
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