Latest Discussions : Basement & Foundation

mringler72

06:53AM | 06/04/04
Member Since: 06/03/04
6 lifetime posts
My contractor wants to install a perimeter drain, floor drains and a standard sump pump in the basement. The county health dep't. wants me to consider a pump that is installed outside the foudation instead of the basement to avoid any possible water entering the basement. Who's right????

Matt

tomh

07:30AM | 06/04/04
Member Since: 07/01/03
549 lifetime posts
I'm not sure the Health Department has jurisdiction, or that codes even specify the design of permimeter foundation drains to this extent. The argument forwarded by the Health Department is presented in an article at the following link. I tend to agree with the rationale presented. The separation of exterior and interior drain systems is logical, and does not mean that an interior sump pit would not be used. Rather, the interior sump pit would only drain water collected from the interior perimeter,and not cross over from the exterior. This approach would be best at preventing water from being directed through weep holes to an interior french drain and should provide the highest level of protection.

http://www.homewiringandmore.com/building/footingdrainage/

I don't think anyone is right or wrong here, and your contractor has no doubt built many successful systems. But the health department does have a good argument, and I think you would have a better system, following their advice for exterior perimeter draining as the primary means of eliminating water, preventing its entry to the basement; and using an interior french drain (as recommended by the contractor) only as backup.


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