4 return blukheads help!!!!! GPH?????!!!!!

[GiangNOOO]

I have a 180 and it has two over flows at each corner with a 1" bulkhead. I have 4 return eye bulkheads a long the rear top panel of the tank.
my question is what size pump is required to use the 4 bulkheads return?

also
mag-drive or quite one?

 

[cypher1024]

There's no *minimum* flow requirement for return bulkheads. You can use them all if you want.

 

[LowCel]

Go for a magdrive pump, they are very reliable and reasonably priced. The pump size is sort of up to you within reason, it will only drain as much as you send to it. The four 1" drains should allow approximately 500 gph each so that should give you 2,000 gph max. I would go a little lower to play it safe though.

With all this said, I'm pretty tired so I could be off on my calculations. Here is a link to the calculator I used though. I entered 500 gph and came up with 0.92" line. Also keep in mind that if you have some bends that it will lower the capacity some.

http://www.reefcentral.com/calc/drain.php

 

[LowCel]

This may come in handy as well, it is a good head loss calculator to help you pick out the pump that is right for you.

http://www.reefcentral.com/calc/hlc2.php