I have an hang style over flow where I made an internal box from a lee's specimen box and the outer box is from an amiracle overflow. The problem I have is when I shut the power off, it drains too much from the internal box and the U tube eventually loses its siphon.
I have a stockman standpipe in the overflow where I had to have the drain hole cut low to keep the drain sound reasonable. Do I just need to raise the pipe so the drain hole is higher therefore not pulling as much water from the internal box?
I might just try to build another Durso pipe. I made one from 1" pvc
and it would not drain fast enough for my mag 5. 1.25" pvc
is a bit big for my overflow box. Is there a valve that can be bought at Home Depot or similar to restrict some flow from the mag pump?
Thanks for any tips/ideas!