diy overflow

[banditpowdercoat]

Can't read anything on the pic, to small, but the sideways T that goes into the 90 that does on the downpipe to the sump. Between the T and the 90, drill a hole on the top of the pipe. 1/8" to start. this is a siphon break. I have never made a overflow like you have there, but I know you need an air inlet. Acctually, looking at that Drill the hole in the cap that you filled the pipe up with.


Try it first Without the cap on the top of the T, I bet it just may work fine without that cap, Fill it up, and then open valve and see