Originally Posted by Toronto scarz
Thanks very much. I made my first mistake on shutting pump off without closing valve on my first trial day. Didnt have my third emergency barrel set up yet. Flooded basement. Lol. Amateur mistake. Wish I had the check valve. Lol. I got it down pat now. My problem is that the pump is way to powerfull. Wish I went size smaller. Return ball valve is only a quarter open and still to strong. Back pressure to sump going like crazy. Moving Mechanical filter all over. I have to set up more aquariums to split the line now.
What pump did you use? You should have one that moves about 13 gpm at 10' head (elevation). The short lines and large tubing sizes reduce restriction above the simple lift to almost nothing.
Let me know the exact circulator you used, the difference in level between the the sump return connection and the top of the weir and the tube size you used. I'll let you know if the circulator is so oversized that you have no choice but to replace. Sump system circulators must be of the high volume, low head design and using restriction to "slow" an oversized circulator of such design will cause it to die an early death while consuming too much juice. Why? Significant restriction that reduces flow turns the system into high head, high flow which is the worst possible state.