In article .com,
wrote:
There is a heavy black cloth that I bought from Home Depot to line my
french drain project that allows water to pass but nothing else. That
should solve your problem.

That sounds very encouraging. I would find that in the plumbing
department? "Heavy black cloth" sounds kind of like garden shade
cloth, but you're talking something used in plumbing rather than
something used over plants, right?

Thanks also to FW for the tip about using a stocking.


Patty