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Thread: Installed a variable speed motor on my pump - wow, what a difference.

  1. Back To Top    #1

    Join Date
    Sep 2008
    Toronto, Ontario, Canada

    Installed a variable speed motor on my pump - wow, what a difference.

    I thought I would share my experience upgrading my pump to a variable speed.

    I had a 1hp single speed AO Smith motor on a Hayward super pump. It was making some brutal noises last fall so I knew it was time for it to go.

    I decided to replace the motor only since the wet side of the pump was in good shape. Spoke first to Regal Benoit and they recommended that I replace the motor with a Century VGreen 165 Variable Speed Pump Motor. Thumbs up to Regal Benoit customer service for efficient support.

    Then I want to and ordered the motor, a new impeller and seal kit. I followed the excellent instructions on INYOpools's website and replaced the impeller, seals and motor. Flipped the breaker and nothing happened. Ugh. I thought I screwed up the wiring but checked it and rechecked it and it was fine. So I replaced the breaker and voila - the LED lights powered up.

    Hit the start button and pump started on the default program. First thing I marvelled at was how quiet it was. Basically just a low hum. Hardly noticeable from 20 feet away. And the extra flow I got from going from 1 hp to 1.65 hp was very noticeable.

    I don't have an electricity bill yet so can't comment on the energy efficiency but I can say that the installation was a breeze and my first impressions of the pump operation totally positive. The only hiccup in installation was the aforementioned breaker problem and the fact that the screws were seized on the old pump motor. I had to use a pry bar and basically rip the cover off. Oh and - one caveat - the Century pump motor is about 3-4 inches longer than the old AO Smith. My power wires would not reach so I had to run new ones from the breaker box.

    Now, one question. Since I am just opening the pool and it is cloudy, should I be running at full RPMs until the pool clears or is that overkill?
    Concrete (gunite) inground pool and spa (17,000 gallons)
    Hayward H350 natural gas heater (electronic)
    Goldline Aquarite chlorine generator
    Hayward pumps, Hayward Pro Series sand filter, Goldline valve actuators, TF-100 test kit
    Location: Toronto, Ontario, Canada.

  2. Back To Top    #2

    Join Date
    May 2015
    kingston springs, tn

    Re: Installed a variable speed motor on my pump - wow, what a difference.

    I think at least working enough to get your pool water turned over once each day. Also depends on if you have a SWG and need the chlorine production. Anyway you need to test your water and balance it as soon as possible. Nice Story on the pump. I need to do the same to mine!!
    18x36 IG vinyl 18,000 gal, Hayward super pump 1hp - 1.5" pipe, Pentair Triton TR-60 sand, Pentair Itellichlor IC-40 SWG, Pentair Intellibrite 5G 12v color LED light, Polaris 280 cleaner, Hayward Booster pump, Intermatic Power / Timers.

  3. Back To Top    #3
    Divin Dave's Avatar
    Join Date
    Oct 2013
    Longview, Texas

    Re: Installed a variable speed motor on my pump - wow, what a difference.

    nice post on your motor replacement. I love my VSP. You'll soon find out, that beyond the energy efficiency, they have several other features that are nice to have, such as programming, built in timer, and built in freeze protection, not to mention how quiet they are.

    Divin Dave,
    IG Vinyl, 15' x 30', 3 1/2' - 6' deep, Oval, ~15K gal, Intelliclor IC40, Intelliflo VS pump, Clean and Clear 420 Filter, auto-fill-disabled, Retrofit LED Color Light, Dolphin Nautilus Robot, TF100 Test Kit, Taylor K1766 Salt Test Kit, Tftestkit Pressure Gauge. Experience- it's what's learned just after you needed it most !!

  4. Back To Top    #4

    Join Date
    Apr 2016
    Rockville MD

    Re: Installed a variable speed motor on my pump - wow, what a difference.

    Plus they run cool, which means less wear and less electricity converted into useless heat. It's a great thing. VS pumps will become the norm as prices continue to go down, just like when everyone went from CRT to flat screen TVs. I suspect my electric bill will be looking A LOT better.
    20x35 in-ground oval. Wet Edge Luna Quartz finish. Hayes Super Pump with AO Smith V-Green 165 VS motor. Polaris 380. Enersol solar heating with automatic controller. Automated chlorination with Stenner pump.

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