Can a French Drain terminate underground?

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Old 07-18-07, 10:57 PM
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Can a French Drain terminate underground?

I have a large amount of runoff from a long sloping sidewalk beside my house that seems to be causing some foundation problems. Good news: it's at the bottom of a slope. Bad news: I cannot vent the French drain above ground due to property owner considerations.

So can I use solid pipe to lead the runoff underground to a 10-foot-long French drain of perforated pipe trench/gravel/landscape cloth, and leave the whole thing underground?

Or, do French drains require an above-ground exit vent?

Thanks. I have zero experience with these things, obviously.
 
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Old 07-19-07, 04:32 AM
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Welcome to the forums! Not seeing the lay of the land you are on, I am guessing. You can basically lay a drain field similar to a septic tank, with gravel base, sock covered perf pipe, gravel and land cover. Now this is dependent on how much run off you get. If you get enough to fill up the pipe, it will back up and negate all the money you just spent on the drain field. Primarily, I would check with the local authorities to see if they can give input on how to do it and stay within local regulations. I am sure others have had the same problem, and they will usually be happy to help.
 
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