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Thread: Pool pump quandary

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    gtemkin's Avatar
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    Pool pump quandary

    My current pump is an antique bronze Jacuzzi driven by a 1hp 220V 56C motor (possibly the last one on the planet). The 56C means it doesn't have a screw-on impeller, it has a keyed shaft and the motor shaft doesn't even enter the wet end of the pump. It runs pretty quiet and I've rebuilt the pump section easily in the past.

    However, my single speed motor is an electricity hog and I'd like to do something about that. My most recent electric bill has my average Kwh rate at $0.11 although, since that's based on a usage tiered system with a low $0.05 base rate, the less I use, the more I proportionally save.

    At the same time I change the motor I'm also thinking of dropping down to a 3/4hp version. My pool has a single skimmer, 3 returns and no other water features or loads except for a Kreepy Krauley pool cleaner.

    One of my big concerns is noise. I live in the city with neighbor's homes within 5' of the property line, and a lot that's only 60' wide. I'm happy with my current equipment noise level but I'm concerned that if I switch to a new motor/pump combination, it's going to be a screamer in comparison. Are current model pumps generally quiet? Are some better than others? Is it all a mute point, and is every pump quiet when operated at low speed?

    And one last question, generally, are the wet end's of current pumps better than the 1960's dinosaur I have so that a drop to performance of a 3/4hp will generally be made up by improved pump design? Thanks.
    21K gal 16' x 40' in-ground pool built 1959, old school with Jacuzzi bronze pump, American Products 24" Sand Filter & Americana Multiport valve, Jandy Lite2 millivolt heater, Coverstar cover, and classic Kreepy Krauly.

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    gtemkin's Avatar
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    Re: Pool pump quandary

    Well, although I'd like to know some about pumps, and my circumstances in particular, the 4835Kwh (58 days) usage shown in our $556 electric bill that drove me to post appears to be an error. Just went out to the electric meter and it shows a reading that's far lower than what the bill says. Recomputed the bill and it should really be $95. $461 savings! Too bad it isn't something I could take to the bank...or buy a new pump with.
    21K gal 16' x 40' in-ground pool built 1959, old school with Jacuzzi bronze pump, American Products 24" Sand Filter & Americana Multiport valve, Jandy Lite2 millivolt heater, Coverstar cover, and classic Kreepy Krauly.

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    cowboycasey's Avatar
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    Re: Pool pump quandary

    I am not sure and I have not heard my motor yet but this is what I went with, maybe someone else will know if maybe this will work for you

    Amazon.com : Pentair 340042 SuperFlo High Performance Energy Efficient Two Speed Pool Pump, 1 Horsepower, 230 Volt, 1 Phase - Energy Star Certified : Swimming Pool Water Pumps : Patio, Lawn Garden
    Pool: Intex 16x32 15000 gal, 2 speed 340042, Pentair CC320 Filter, CircuPool SJ45 Salt System, Intermatic PE653RC; Hot Tub: 650 Gal SWG Megachlor
    links: pool school * Recommended-Levels * SLAM * CYA chart * Test kits * How To Post Pictures * Poolmath * OCLT ** Support your website if we helped you :) **

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    Re: Pool pump quandary

    I'm sure you know, but the first and foremost energy saver is pump run time. Keep cutting it back until your pool is no longer clean enough.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    gtemkin's Avatar
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    Re: Pool pump quandary

    Quote Originally Posted by duraleigh View Post
    I'm sure you know, but the first and foremost energy saver is pump run time. Keep cutting it back until your pool is no longer clean enough.
    Yes, I probably haven't got to that min run time yet. I've run the pump for longer periods recently to clear the water of the "plaster dust" episodes I experienced. I will definitely work towards min run time.
    21K gal 16' x 40' in-ground pool built 1959, old school with Jacuzzi bronze pump, American Products 24" Sand Filter & Americana Multiport valve, Jandy Lite2 millivolt heater, Coverstar cover, and classic Kreepy Krauly.

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