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#1
04-16-2006, 10:58 PM
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What size pump do I need?
Ok first some details I'm setting up a 90G perfecto reef ready with a 25G sump. The feed line looks to be a 1" 1/2 ID feed and a 1" ID return line to a split loc line nozzles all through 1 1/2 bulkheads. The tag on the tank says 700GPH. Now if I go higher GPH is it going to overflow the tank? It will probably be a little over a 4' head pressure. I want to go with a sumbersible pump I was thinking of a mag 9.5 but at 4' the head pressure is 800GPH will the overflow take it or will it cause a flood? or could I put in a ball valve to choke it down? dunno if this damages the pump or not
 or should I go with the Mag 7 that only has a 475 GPH head? Please throw some idears my way I'm looking at getting a pump this week  Sorry for all the questions I new to all the overflows, sumps and pumps 
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Murray I reserve the right to hijack any thread I want to!! My carbon footprint is bigger than your carbon footprint !!!! 
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#3
04-16-2006, 11:27 PM
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If your pump is too strong, you can always install a bypass and have it pump back into the sump.
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32"x32"x20" Cube-ish tank
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#4
04-16-2006, 11:28 PM
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use the mag 9 and put a T on the outlet with a valve that you can put some water back to the sump then you can adjust the amount that goes back to the main tank.
Steve
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 *everything said above is just my opinion, and may or may not reflect the views of this BBS, its Operators, and its Members. If cornered on any “opinion” I post I will totally deny having ever said this in a Court of Law…Unless I am the right one*Some strive to be perfect.... I just strive.
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#6
04-17-2006, 08:16 PM
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Thanks for the idears I will probably go with the by pass option
__________________
Murray I reserve the right to hijack any thread I want to!! My carbon footprint is bigger than your carbon footprint !!!!
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