Ok...I feel pretty stupid asking this, but I can't figure it
I was thinking about getting a wet/dry filter with a sump under my tank. I've looked online, but I still don't think I've found a satisfactory answer that answers my question...
I understand that the water intake from tank to sump is done with suction...no problem there. However, when there is a power outage, I realize the overflow box will only "feed" the sump a certain amount of water(so the sump doesn't overflow). Now, here's my question...
When the power comes back on, how does the tank to sump suction start up again? Or can it? I would think when the power goes out, the suction would grab all the water in the overflow box and then suck air till the suction is broken. When the power comes back on, the filter in the sump will push the water back to the tank, and subsequently the overflow box will start filling up again...but with the suction broken, the sump won't get any more water....right??