My buddy bought a house with a 1,700gallon pond drainging into a larger 3,000 gallon pond. Just finished cleaning it out, removing excess rocks and plants, replaced filter and pump, etc.
Original there was no cover on the drain , just a 2" pvc pipe sticking out of the bulkhead.
First we added one of those flat disc style drains, to help prevent fish/frogs from being sucked up. Worked fine.
Then we added a T fitting and attached the no niche skimmer.
But no water is being sucked thru the skimmer, only the bottom drain.
The picture shows how it is setup.
I was thinking the shut off vlave might need be between the bottom drain and the T and not between the skimmer and the T?
Any ideas or better ways of setting it up? Figured id gather as much info as possible before i head back over there.
Thank you for your time.