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Buganddoug
02/28/2008, 12:13 PM
OK if you had a to choose between a flow pump or a pressure pump for your return and you are going to use two Eductors what would you choose. Here are the pumps and info.

Flow pump Blueline 40 HD-X External Water Pump 1" in and out 1270gph at 0 head 1080gph at 4ft of head. 130 watts.

Pressure pump Gen-X PCX40 3/4" in and out 1190GPH at 0 head 1140GPH at 3.3' head. 110 watts

This is going into my 180 Reef Tank I have 1" lines now and they go up to a 1" tee that has two 3/4" outs.
Thank you for your help,
Daniel

gabe3d
02/28/2008, 01:59 PM
http://www.kthsales.com/website/Misc/hello_salt_water_enthusiasts.htm

That is a good link with lots of info about it. You might want to look at the maximum head the pump can handle since it will give you a better understanding and expectation for the end result.