Hillage
Aquarium Advice Activist
I've been doing a little research on return lines and stuff for my sump. I know you should drill a hole in the pipe just below the water line to prevent a siphon if the power goes out (never has at my house, but you never know). These holes I've seen drilled are all for returns that go over the top of the tank wall and down into the water. My question is, what do you do if the return is going through a bulkhead in the water? There isn't really a place to drill a hole in that case..... Any ideas? TIA