Another Sump / Flow question

[ensquire]

Originally Posted by subman

Greg is right about sump turn over. Although I don't see the down side of more flow.

Originally Posted by subman

I have an 1-1/2 drain and 2 1600+gph pumps and my gate is almost closed as well. At full siphon it will handle wayyy more than that. The only problem Ive come across is setting the gate with that much flow it becomes very sensitive.

I don't know why it bugs me so much LOL even considering reducing drain pipe diameter just so I can open up valve more

Originally Posted by gregzz4

I've read that flow rate through a sump, for proper skimming efficiency, is 6.1 times per hour
This would, of course, be comprised of your total system volume
1-1/2" drain has a potential of about 1350gph

Edit - apparently the calculator I use is way off for the drain