Pump help

[racoloish]

Hi, I was looking a pump that provides between 420 to 720 gallons per hour. It's for a chiller, I was thinking a Eheim but don't know which one. Can someone tell me which one get?

 

[AZDesertRat]

Why use an additional pump? I would use your existing return pump so you don't add any additional electrical consumption or heat load making the chiller have to work even harder. Back when I used chillers I plumbed them into my return.

To properly size the pump you need to know your headloss.

 

[racoloish]

I don't have a return pump only a skimmer and hob filter.

 

[AZDesertRat]

The Eheim 1260 is probably a good choice then. There will not be much headloss, almost like a closed loop where you take water from the display, circulate it through the chiller and put it back in the display.
Are you sure you really need a chiller versus using fans which are much cheaper and can work quite well when set up correctly. I can easily lower my 100G tank 5 degrees or more with a clip on fan blowing across the surface.

 

[racoloish]

Thanks. Yes I need one, I live in Puerto Rico and the temperature here is between 85 to 90. Some days a little lower and some days a little higher. I got the chiller.