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Old 03-01-2004, 01:06 PM   #1
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sump GPH requirement?

I have a 29G which I plan on having a 10G sump. I would like to locate my heater and skimmer in the sump. What is the minimum GPH I need to flow to have the skimmer/heater work efficiently? (I need to know how big of a pump to get)
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Old 03-01-2004, 02:02 PM   #2
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My sump turns my entire tank volume about 4.5 times an hour. I then suppliment turnover in the aquarium with 4 maxijet 1200's on a redsea wavemaster pro. This gives me around 13 - 14 times per hour total. I am not factoring in the pumps for my fuge (rio 2100) or my PS (dolphin 560) as I am not sure they count tword turnover. HTH
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Old 03-01-2004, 04:09 PM   #3
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I would pump about 300 gph through it.
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Old 03-02-2004, 02:39 AM   #4
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Sump pump size

Hey, that's a coincidence! I just completed adding a sump to my 30gal...a very similar situation.

Even having done it, I don't know what my GPH actually is. I learned a lot about head pressure. In my case, I needed a 750 GPH pump in order to get an estimated 300 GPH actual flow. That's key... you can't determine what GPH you are going to get from a pump just by looking at the rating. You need to estimate your head pressure, which reduces the flow accordingly.

In the end, I had to throttle the pump back slightly because I was pushing my overflow box a bit hard. So I might be at 200 GPH. The tank could easy take more than that. It isn't like 200GPH is causing too much water circulation in the tank or anything.

I also have supplemental 60GPH power head in the tank for additional water movement. If it didn't clutter up the tank, I would consider even another powerhead in the tank.
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Old 03-02-2004, 03:43 AM   #5
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Whats the distance from your sump to the tank?? In regards to obtaining a 300gph from a 750gph pump?


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