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[quote]Originally posted by Pelican
What I have been doing in this situation is lining the trench with filter fabric before the clear stone and pipe are installed. This prevents fines from contaminating both the perforated pipe and the clear stone at the same time. Also, there is a much greater surface area of filter fabric so that any clogging of it will take an extremely long time.
This is my approach as well.
One other note is that PVC is a much more reliable drain pipe especially if you have the opportunity for flushing. Flexible, corrogated pipe encourages sediments to fall out of suspension, which is the opposite of what we would want. Also, corrogated pipe can not be flushed.
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JPL
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