View Full Version : Will a 1' drain handle a single quiet one 3000 (780gph)

01/09/2011, 05:32 PM
I know that most people say 1" drain will only drain 600 gph, but I know with the head pressure of 58" it will cut the quiet ones flow down quite a bit. Just wondering if there is a precaution I can take while plumbing in case it is too fast for the drain.

01/09/2011, 05:36 PM
Install a gate valve on the OUTPUT of the pump. This will allow you to throttle the pump back a bit if needed.

01/09/2011, 07:37 PM
^+1. You shouldn't have to worry though. Your GPH should be well under 600 with the head loss. http://www.reefcentral.com/index.php/head-loss-calculator

01/09/2011, 10:15 PM
Great info thanks, i might have to plumb with flexible tubing because the bulkheads hav slip fittings so I cannot use a gate valve without a lot of rigging.

01/09/2011, 11:49 PM
I run a QO4000 with about 4' of head and a SCWD with no problems, no throttling back.

01/10/2011, 01:54 AM
Im running a quiet one 3000 with 4 foot head and no throttle back