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Question
When installing a French drain system, how far away from the house foundation do you begin the trench? Would one foot be enough? Thank you. from Seattle, WA
Steve, the distance away is not as important as the proper depth. The French drain should be lower than the floor it is protecting. On normal new construction, the french drain is installed along the footing encased in gravel. A normal distance would be about a foot. The best systems also use a product similar to Enkadrain on the walls to allow any ground water to get down to the drain tiles quickly without jeopardizing the walls and their waterproofing/damp proofing. The other standard problem has to do with how you get rid of the water. If there is a way to direct the piping to daylight, it is certainly better than having to use a sump and pump.
Hope this anwered your question.
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Answers by Expert:
Dan Griffin
Expertise
I can answer almost all questions related to the total construction process. My expertise is in commercial construction, though I can field most any residential question. I have hands on experience in concrete, heavy equipment, masonry, all phases of carpentry, interior finishes, and I am fairly strong in mechanical and electrical.
Experience
I have over 20 years experience as a commercial carpenter and commercial construction superintendent. I have another 20 years experience in facility management for a major school district.
Organizations
My favorite hobby for he past 12 years has been singing bass in a The OkChorale men's barbershop chorus and the Mature Moments quartet.
Education/Credentials
I hold a Bachelor's degree in English and Math. I have completed many continuing education hours in the building trades. I hold a Master Carpenter card from the AGC, Associated General Contractors.
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