Louisiana_sitar_club t1_jdtocet wrote
Reply to comment by tripmcneely30 in How to fix this rock "trench" in my yard? by putriidx
But isn’t the sock around the pipe just something that has small enough spaces to let water through but not sediment? Won’t the sock clog up with sediment the way an air filter clogs with dust?
iRamHer t1_jdtvjzz wrote
eventually. you'll end up removing and redoing it eventually.
to prolong this, you can make a wrap to give more filter surface, and use a proper landscape fabric. a double punched non woven fabric is what you want. 4oz is a happy medium, less will allow more flow but isn't as heavy, 6/8, and higher oz will be less permeable and won't pass water as quickly.
to be fair, you don't use a French drain to take care of surface water. op should just run a trench that can be easily cleaned if maintenance is priority and ground water isn't a concern. can run a French drain underneath if needed.
in a French drain you ALWAYS want to use a fabric. even in heavy clay. again, many people are better served by proper slope and surface drains for the bulk of their water, which prolongs fabric health.
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