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Sacie, do you make your foundation drains lower
than the bottom of the footing. My general method is to waterproof to the
side of the footing. If the soil is workable, I excavate the footing
trench to the edge of the larger excavation cut and form the exterior side by
blocking to the main cut. This leaves my drain as low but not lower than
the bottom of the footing. A deeper trench would seem difficult to
achieve. Perhaps it could be done by hand after the footings have set up
as long as we do not undercut the footings. Never the less, adding plastic
to the bottom of the footing seems like a fairly easy thing to do.
Sacie's comment from earlier message.
I would guess
that given footings with a good French drain located at the
foot of the
footings, moisture would seek its own level so to speak and not
wick up,
through the concrete. It should be much easier for it to flow
through
clean rock into a perforated drain. Sacie
Lambertson
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