@TooTea - I could be wrong but that looks like a weed net used in gardening. I am guessing it was used to catch hair and things so sump pump doesn't get it. It is funny that someone spent that much time doing something correctly that is so wrong. Whoever devised this gets an A+ for effort. If someone said "You aren't allowed to connect a shower to a sewage line" - this is a damn good way of doing it. —
DMoore 22 hours ago