Mag 3 sump pump! 350gph???

A

Abysswater

I have a 20 gal tall with a 10 gal sump, will this pump be enough? I got 2 feet of 3/4 vinyl hose into a SCWD with 1' 3/4 hose branching off to 3/4 pvc pipe over the lip and into tank. total about 5' total. I know I can add a ball valve to control rate and flow. Plus I need to make a overflow box. I know my design comes down to the flowbox gph etc. thoughts?
 
The Mag 3 at 5' vertical height pressure using 1" plumbing will give you 250gph if you have virtually no elbows. Now that you added the SCWD, take 20% off of that and the pump is moving 200gph. You used 3/4" tubing, so there is more friction and less volume, so you can cut that number down by probably 1/3 or more. I bet you'll barely get 120gph out of it now. Which is fine for a sump pump, as that is 6x the volume of your display.

Make sure you used plastic hose clamps on all connections to avoid a gyser.
 
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