Guess what! UPGRADE TIME

[mrhasan]

Originally Posted by kien

Have you installed the check valve? If not, then are you planning to? Looking at your sump there doesn't look like a lot of room for back flow in the event of a power failure? Hard to see in the pic to determine for sure though. Did you design the sump with room for back flow in the event of a power failure or were you going to rely entirely on the check valve?

Nop not installing check valves. I won't be getting any sort of back siphon since the return nozzles remains above the water level while running; it gives a very pleasant waterfall sound (not the irritating one). And I have simulated many power failures till now and the maximum level (after like 30mins of keeping the pump off) is like this:



So there's still room for around 2/3 gallons I presume. The DT looks like this after power failure: