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Old 12-13-2003, 02:07 PM   #1
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measuring actual GPH

My Filstar XP1 filter is supposed to pump 250 GPH, but I'm being told that between filter media and position of the filter (about 3 feet under the tank) it's getting much less than that. Is there a way I can actually measure it?

Will this work? I could set my five-gallon water change container on a step ladder, and measure the time it takes to pump 5 gallons out of the tank. From there I could figure out the GPH. Is there an easier way?

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Old 12-13-2003, 02:10 PM   #2
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I think that this article pretty much describes what you said. A long annoying but useful process.
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