How far from the house foundation should a french drain be?

Determining such a location may end up being a matter of choosing “the lesser of two evils.” If water is currently spilling out at your house foundation and excessive moisture threatens to damage it, obviously almost any other spot would be preferable. The ideal French drain leach field would be an out-of-the-way area with sandy soil, through which the water could percolate harmlessly.... Sources: <a rel="nofollow" href="http://landscaping.about.com/cs/lazylandscaping/ht/French_drains.htm">http://landscaping.about.com/cs/lazylandscaping/ht/French_drains.  more