WTB non-return valve

[searching4dan]

non-return valve? anyone?

whenever there is a blackout or when i put a stop on my pump temporary

the water will juz flow backwards into my sump

flooding the whole sump then onto the floor

quite frustating.. (lucky did not drain my main)

so i need to find a non-return valve..

so can go out @ ease, no need to come home with a wet floor..

anyone selling or noes where to get?

[davwong]

Just drill as small hole below the water level at the return pipe in your tank and save money on the valve. The hole will break the siphon effect when the water level is lower toward the hole.

[searching4dan]

umm.. thanks

but u mean drill a small hole on the return pipe BELOW water level in my main tank??

u tried it b4 and it works??

[Soul]

drill at the pt u want the water level to stop at lor