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Thread: variable speed pump ?

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    variable speed pump ?

    My average electric rate is 9.902 per KWH here in Upstate New York. I was thinking a variable speed pump or 2 speed pump would provide me with a little savings in electrical usage. My PB wants to use a single speed pump and this is what I am contracted for ?? Any thoughts? Thx
    20X36 IG vinyl (18,000 gal), 3 sheer descents, Max-Flo 1.5hp VS 2300, Aquarite T15 SWG, C3030 filter, 250,000 BTU heater, Sharkvac XL (Hayward equip)

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    BoDarville's Avatar
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    Re: variable speed pump ?

    I would go for the 2-speed over either the single-speed or variable-speed. The 2-speed of equivalent output should cost $80-100 more than the single-speed and you will recoup much of that difference within the first year or so in reduced electrical costs. Variable speed pumps are a big jump in price over 2-speeds and have a lot more complexity and electronic controls.

    Your PB should have no problem substituting a 2-speed for the single-speed as long as you pay the difference in cost. If, for whatever reason, he does then I would make it clear that you will consider other builders. That should get his attention.
    Gold Supporter, TFP Lifetime Supporter, 26,680 gal Plaster IGP 3.5 - 10' depth / Attached Waterfall Spa, Manually Chlorinated, Triton Sand Filter, 1.5 HP * 1.1 SF = 1.65 SFHP 1-speed Pentair WhisperFlo WF-26 Pump, 400K BTU NG Teledyne Laars Series One Heater, Polaris 360, Test Kit Comparison, Chlorine/CYA Chart, SLAMing Your Pool, OCLT
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    Re: variable speed pump ?

    Thank you for the reply.
    20X36 IG vinyl (18,000 gal), 3 sheer descents, Max-Flo 1.5hp VS 2300, Aquarite T15 SWG, C3030 filter, 250,000 BTU heater, Sharkvac XL (Hayward equip)

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    pwrstrk's Avatar
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    Re: variable speed pump ?

    + 1 to what Bo said ! 😎
    Jeff
    24'x54" AG Morada RTR (by wilbar) 13'500 gal. Hayward Powerflo Matrix 1hp 2 speed. Hayward Perflex EC65 DE filter.

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    Re: variable speed pump ?

    Worst case , , , don't start up the new pump and sell it to recover some of the $$$ of what a 2 speed will cost. The two speed will pay for itself and one nice benefit is if your pump is out in the open like mine, it's cheaper and quieter when running on low !!

    But changing what pump YOU want before the part is plumbed in really shouldn't matter to the contractor unless he's sitting on fifty of them he got cheap and thinks he can make a killing forcing them on his clients.
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    bobodaclown's Avatar
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    Re: variable speed pump ?

    I 3rd what Bo stated. Go with the 2-speed you won't be disappointed.
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    Re: variable speed pump ?

    2 speed, cost recovery in less than a year at 9 cents. The ROI on a VS requires 20 cent electric given all of the other extra components required to make it work.
    TFP Moderator Chris V. ~16K Pool & Spa, 48NSF DE, IG Plaster Circa 2000, Intermatic PE653, Challenger pump with a 2 speed B2984, 20gal stenner chlorine injection, Houston, TX
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    Re: variable speed pump ?

    Thanks again everyone for the replies.
    20X36 IG vinyl (18,000 gal), 3 sheer descents, Max-Flo 1.5hp VS 2300, Aquarite T15 SWG, C3030 filter, 250,000 BTU heater, Sharkvac XL (Hayward equip)

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    Re: variable speed pump ?

    OK as recommended here on TFP, I went with the 2 inch PVC and a Hayward VS pump. I know some suggested a 2 speed pump, but I just went for the VS. We still have snow on the ground here in upstate NY and the PB did not start breaking ground yet. Getting close though.
    20X36 IG vinyl (18,000 gal), 3 sheer descents, Max-Flo 1.5hp VS 2300, Aquarite T15 SWG, C3030 filter, 250,000 BTU heater, Sharkvac XL (Hayward equip)

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    Re: variable speed pump ?

    What abt the flow of the waterfall on a 2 SPd or vs?
    My PB is saying he could go with either with that extra cost.
    But he is saying the savings is like 8-9 dollars per month.
    It will take 4-5 yrs to recoup that extra 300-400 dollars I would have to pay.
    I m in tx and we pay abt 10 cents/kWh for 1 yr contract.

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    Re: variable speed pump ?

    Crank the pump to high when you have a party or want to feature the waterfall.

    On the use ...Don't trust your pb. Do the math. Using rough example numbers a single speed pump is around 3000 kWh a year to run. A VS or 2 speed will be between 750 and 1500.

    Again rough numbers and if you run your pool more than is required to get a single turnover the 3000 number could be more like 6000 or 9000. At a 10 cent rate just drop the last zero and you have your annual cost.

    To find your numbers get the amperage or wattage of the pump and your anticipated run times. Using those numbers you can find the kWh and extrapolate the cost per year to run.

    FYI a 2 speed pump
    Is not an extra 300-400.
    TFP Moderator Chris V. ~16K Pool & Spa, 48NSF DE, IG Plaster Circa 2000, Intermatic PE653, Challenger pump with a 2 speed B2984, 20gal stenner chlorine injection, Houston, TX
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    Re: variable speed pump ?

    Quote Originally Posted by spj318ti View Post
    What abt the flow of the waterfall on a 2 SPd or vs?
    My PB is saying he could go with either with that extra cost.
    But he is saying the savings is like 8-9 dollars per month.
    It will take 4-5 yrs to recoup that extra 300-400 dollars I would have to pay.
    I m in tx and we pay abt 10 cents/kWh for 1 yr contract.
    The PB said no problem with the VS set on low and the sheer descents. We will see, I'm sure there will be a learning curve on what speed works and what does not. I just decided to go with the VS. I probably could of saved some money if I went with the 2 speed but at this point, another couple hundred dollars is doable.
    20X36 IG vinyl (18,000 gal), 3 sheer descents, Max-Flo 1.5hp VS 2300, Aquarite T15 SWG, C3030 filter, 250,000 BTU heater, Sharkvac XL (Hayward equip)

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    Re: variable speed pump ?

    I've been running an Intelliflow VS for 7 yrs on a 26,000 gallon pool. I use it to run sheer descents and a pressure cleaner. Zero issues once I dialed in the proper rates. PB couldn't figure it out. Costs about $6/month year round. Love it.

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    Re: variable speed pump ?

    wow- 9.902 per kWh! My rates are only 0.06 per kWh. thank god for cheap hydroelectric power and the salmon be dammed!
    I was considering putting in a timer on my pump for cost savings as I run my pump 24/7. (2 year newbie) . Pool always looks good.
    I will have to run the numbers to recoup the cost.

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    Mod Squad jblizzle's Avatar
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    Re: variable speed pump ?

    Quote Originally Posted by dreon View Post
    wow- 9.902 per kWh! My rates are only 0.06 per kWh. thank god for cheap hydroelectric power and the salmon be dammed!
    I was considering putting in a timer on my pump for cost savings as I run my pump 24/7. (2 year newbie) . Pool always looks good.
    I will have to run the numbers to recoup the cost.
    Pretty sure they meant 9.902 cents per kWh ... not that much more than your 6 cents per kWh.
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    Re: variable speed pump ?

    Quote Originally Posted by jblizzle View Post
    Pretty sure they meant 9.902 cents per kWh ... not that much more than your 6 cents per kWh.
    You are correct.
    20X36 IG vinyl (18,000 gal), 3 sheer descents, Max-Flo 1.5hp VS 2300, Aquarite T15 SWG, C3030 filter, 250,000 BTU heater, Sharkvac XL (Hayward equip)

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