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Thread: Filter Size vs Pump Size

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    Default Re: Filter Size

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    I'd recommend you actually measure your pool -- I check registration addresses on Google Maps as a method of keeping spammers out (I'm the only one who can see that info -- not even the moderators have access), and your pool doesn't look like a 30k gal pool. Pool builders, home sellers and realtors tend to overstate pool volumes, sometimes by 100%.

    Measure the length, width, actual water shallow depth 1' from wall and actual water deep depth 2' from the wall, and post that info. I'll recalc volume.

    Regarding your pump & filter -- a C900 is a little small for a 30k gallon pool, but it's way to0 small for a 1.5hp pump.

    If your pool gallons are what I'm guessing, the best option would be to size your SuperPump down. If you'll look at page 11 of the Super Pump manual, you'll see that the ONLY difference between a 1.5 HP pump, and a 1/2 HP pump is the motor and the impeller. A 1.5 HP motor can operate at any lower output level. So, you can downsize your pump simply by changing the impeller. You'll want to change the seal, too, but in theory that's not necessary.

    A C900 will operate very well with a 1/2 or 3/4 HP pump . . . and you'd cut your electrical bill in half or more!
    Last edited by PoolDoc; 06-28-2014 at 09:14 PM. Reason: fix typo

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