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Thread: Variable Pool Pump?

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    Join Date
    Jan 2014
    Location
    Naples, FL
    Posts
    38

    Variable Pool Pump?

    Good evening,

    I am in the market for a new pool pump and I was looking into variable speed because I've heard they're more energy efficient. I am currently running 1.5 HP (specs below) to power a rock waterfall feature. Originally, I was looking at the Pentair Superflo vs Variable Speed Pump 342001, 1.5HP 115-208/230 1 phase, however, one of the installers I asked said he's seen a bunch of problems with those and is recommeding the Hayward Ecostar Variable 1/4HP - 3HP. When I told him I need enough juice to power the waterfall, he said it might not be worth it then to go variable speed. I am completely lost!! If I got the Pentair that runs 1.5HP to replace the non variable speed pump I have, would that not save in energy? My question is, do you recommend any particular variable speed pump or should I just look into purchasing the normal traditional single speed pump at 1.5 HP and call it the day? Thanks for your assitance.

    Nick A.

    Size and Type : IGP, 7500 Gallons
    Finish: Wet Edge Satin Matrix Finish (pebble), Cartridge: Unicel Model C-8409, 12 PSi, Pump: 1.5 HP A.O. Smith Model USQ1152 (not sure if it's two speed or variable), Pool Date Remodel: May 2009, Accessories: SWG Auto Pilot Digital Nano Model 75041, Rock Waterfall
    Size and Type : IGP, 7500 Gallons
    Finish: Wet Edge Satin Matrix Finish (pebble), Cartridge: Unicel Model C-8409, 12 PSi, Pump: 1.5 HP A.O. Smith Model USQ1152 (not sure if it's two speed or variable), Pool Date Remodel: May 2009, Accessories: SWG Auto Pilot Digital Nano Model 75041, Rock Waterfall

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    CJadamec's Avatar
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    Apr 2016
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    Quaker Hill, CT
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    2,192

    Re: Variable Pool Pump?

    According to you motor model number you have a single speed uprate motor.

    As for the superflo pump many people here as well as myself are really happy with that pump. It has more than enough power for a pool of your size.

    The ecostar will also be plenty of pump, and then some, for you. It will also save money on electrical costs because even if you are able to run it 500 rpm lower than max it uses half the energy.
    Chuck-
    15x30 AG, Pentair Superflo VS, 19" sand filter, TF-100 test kit
    Aqua Comfort ACT750 heat pump / 6x20 ground mount solar panel / DIY automation

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    GaryT58's Avatar
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    Jul 2016
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    Monroe, GA
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    571

    Re: Variable Pool Pump?

    Love my Pentair SuperFlo VS - no issues with it. I can run as low as 650RPM and still meet the low flow rate of my autopilot swg. But the min I run is at 800 RPM, to allow for lower flow as the sand filter gets dirty. Huge savings over my previous 1HP single speed pentair superflo. The Superflo is nice as you can program it to run at different speeds for different periods - i.e. come up and run at 2800 RPM to perform good water movement and cleaning, and then switch to lower rate (1400) for some decent circulation.
    38'x16' Fiberglass pool - 3.5' - 8' deep - 19,000 gallons. AutoPilot Total Control SWG (RC-52 cell), Pentair SuperFlo VS, Pentair SD70 Sand Filter, Coverstar Automatic Cover, 10' board, PAL Treo lighting, Polaris 9550 Sport robot, Lamotte ColorQ Pro 7 test kit.

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    Mod Squad Jimrahbe's Avatar
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    Jul 2014
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    Bedford, TX
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    9,259

    Re: Variable Pool Pump?

    Nick,

    You seem to be trying to match your new pump with the HP of your old pump. This is not at all necessary with variable speed pumps. These pumps should really be called Variable Horsepower pumps.. because that is what they do. You adjust the HP that the pump runs at for your specific needs. So if you only what a slow flow for your SWCG, they only run at a fraction of a HP. If you want to run your waterfall, you just crank the HP up.

    For reference I have the 3 HP Intelliflo. Way more HP than I need, but I can run that pump, 24/7, for less than $20 bucks a month.

    Thanks for posting,

    Jim R.
    Finished in 2015 - 17K Gal, IG, 20' x 25' Almost Rectangular Pool, Pebble finish, three rockport water falls. Pentair Equipment: EasyTouch 4, IC40 SWG, 3 HP VS Pump, CCP520 Cartridge Filter.
    TF100 with SpeedStir and SampleSizer, ColorQ Pro 7, Dolphin Premier Robot Cleaner, added Screen Logic 2, added small 3 person Caldera Spa.

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    Re: Variable Pool Pump?

    To get good waterfall action without using a lot of power, you can close off other returns.

    How much flow does it take to get good waterfall action (flow just to waterfall)?

    Do you have a heater?
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    Join Date
    Jan 2014
    Location
    Naples, FL
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    38

    Re: Variable Pool Pump?

    Thanks for all of your responses. Yes, I do have a heater I am running. Probably not so much in the summer since I live in FL. Not sure about how much flow it takes to get a good waterfall action or even how to test that? It sounds like the Pentair SuperFlo then is a good route to go maybe?
    Size and Type : IGP, 7500 Gallons
    Finish: Wet Edge Satin Matrix Finish (pebble), Cartridge: Unicel Model C-8409, 12 PSi, Pump: 1.5 HP A.O. Smith Model USQ1152 (not sure if it's two speed or variable), Pool Date Remodel: May 2009, Accessories: SWG Auto Pilot Digital Nano Model 75041, Rock Waterfall

  7. Back To Top    #7

    Join Date
    Aug 2014
    Location
    TX
    Posts
    40

    Re: Variable Pool Pump?

    I have the same problem with my VSP, running it at lower RPM's isnt enough to run the waterfall. Since electricity here is cheap it really hasnt bought me much and I ended up cranking it back up to 3450 all the time. Just seems to circulate water better, pool wasnt staying clear before. Plus I already have a controller and now I have a seperate controller on the VSP which sucks since I have to set both to match. I wish I'd have gotten the superflo which would have worked with my automation system but I was too cheap.

    I bought the ECM27SQU 2.7HP and it works great though. $600 and you can mount the controller on the wall without the expensive kit, just need the wire at any home depot.

    - - - Updated - - -

    You wont lose anything with getting a VSP even if you have to turn it up for the waterfall you have the option of running it lower if you need it. I forgot to mention also that its saved me tons during winter freezes since I do run it at a lower speed. It defaults to 2450. With my old pump it ran 2 weeks straight during the bad freeze here and my electric bill was super high. Ofcourse I didnt realize I could drain and not run the descent, waterfall and cleaner pumps. I was paranoid about freezing.

    Quote Originally Posted by Nick's Pool View Post
    Thanks for all of your responses. Yes, I do have a heater I am running. Probably not so much in the summer since I live in FL. Not sure about how much flow it takes to get a good waterfall action or even how to test that? It sounds like the Pentair SuperFlo then is a good route to go maybe?
    32,000 Plaster Pool
    SWG Hayword Swimpure, chlorine feeder, Triton II 140c sand filter, Filter motor - 2HP VSP
    Decent - 1/2HP motor
    Cannon Jets under diving board - 2HP
    Cleaner Polaris 280 - 3/4HP motor

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