French Drain advice

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by Daniel S, Oct 24, 2007.

  1. Daniel S

    Daniel S New Member

    May 29, 2007
    O.K. I'm a newbie so please go easy on me.

    I had efforvescence in my concrete basement walls so I got a foundation specialist in my house this morning doing some epoxy/ urethane injections. He mentioned that my french drains are broken but he didn't take the time to inspect the collector pit in the basement. He just told me that the humidity was a sign that my french drain is finished. He is quoting me $85 per linear foot to excavate around the house, install a membrane and install new french drain piping.

    How do I know that it isn't something as simple as it being clogged or something? Would a camera inspection identify what the problem is? I'd like to eliminate all other causes before making any decision to spend several thousands of $$$. What can go wrong with a french drain and what methods of repair are out there??

    Thanks for any advice you can offer.

  2. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Sep 2, 2004
    Retired Systems engineer for defense industry.
    New England
    If the drains weren't installed in a rock bed, and a soil intrusion mat installed over it, it will eventually fill up with sediment. Once that happens, they don't drain much.
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  4. Peanut9199

    Peanut9199 Customer Service Manager Plumbing Wholesale

    Apr 23, 2007
    Customer Service Manager Plumbing Wholesale
    Ontario, Canada
    I would camera inspect it before digging up all around the house, it could be one area that needs to be repaired $85 for two feet is better than $85 per foot all around the house.
  5. toolaholic

    toolaholic General Contractor Carpenter

    Jul 16, 2005
    Repairing and remodeling homes
    Marin Co. Ca.
    French drain???????

    Dang , where's FRENCHIE when You need Him ?? :p
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