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Thread: Pentair 3/4 HP SuperFlo 2 Speed Pump

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    Belle River, Ontario, Canada
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    Pentair 3/4 HP SuperFlo 2 Speed Pump

    Hey all,

    I currently have a Hayward 3/4 HP SuperPump. It was seized upon opening the pool this year, and now starting to hum, whine, and get incredibly hot while operating. It's to the point I no longer feel safe running it. I had the company that opens my pool service the pump to the tune of $100 to get it 'unseized', and they mentioned they replaced a seal as well - exactly what, I don't know. I'm wondering if my bearings are shot based on the sounds it is making and this was overlooked or ignored, or just bad luck having a second problem.

    Long story short, I'm looking to get a new pump. The equipment pad is also about 10 feet from our bedroom window, so a 2 speed pump would be nice, but not critical. I've thought about this for a couple years and this seems to be as good of an excuse as any to switch.

    The Pentair Superflo 3/4 HP pumps look the most appealing, both the single and 2 speed varieties, mostly because my electrical is setup as 115 volts. The pump is powered via an Intermatic timer.

    I'm wondering about how the 2 speed pump switches from hi to low speed. Is it a switch directly on the pump itself? Will it be as simple as running the old electrical into the new pump, so that the Intermatic timer controls power... and then I can toggle hi and low RPM on the pump? I would almost certainly run it on low all the time.

    On a separate note, I'm hoping that replacing the 3/4 Super Pump with the 3/4 Pentair is reasonable to assume that they will perform similarly in terms of flow rates, etc. The Pentair looks a bit easier to plumb in with unions which is pushing me towards it.

    I really appreciate any help, especially if anyone who owns the 2 speed 3/4 pump can chime in about how it's wired or the RPMs are changed.

    Thanks
    matt
    ~15500 gal (60000 L) IG Vinyl, built 2011. Spill-over Spa. SWG - Zodiac DuoClear. Hayward Super Pump 3/4 HP. Pentair Sta Rite Max-E-Pro Booster for Spa. Hayward Sand Filter. Raypak Heater.

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    bobodaclown's Avatar
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    Apr 2011
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    Lakeland, FL
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    Re: Pentair 3/4 HP SuperFlo 2 Speed Pump

    17K Kidney Shaped Pool Concrete (Diamond Bright) Pool, 3/4 hp 2 speed 115V Sta-rite Duraglas PEA5D-180L/P2R5D-181L (Impeller C105-92PS Diffuser C1-216P), 1.5 piping, Pentair CC100 Filter , Heat Siphon 100K BTU Heat Pump Pool Heater, Flow meter Blue White Flowmeter Model No. F-30150P, Hayward Astrolight SP0581N, SWCG CalimarTitanium Edition TE45 , Dolphin Nautilus Plus with CleverClean, Lakeland Florida

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    Belle River, Ontario, Canada
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    Re: Pentair 3/4 HP SuperFlo 2 Speed Pump

    Thanks for replying.
    ~15500 gal (60000 L) IG Vinyl, built 2011. Spill-over Spa. SWG - Zodiac DuoClear. Hayward Super Pump 3/4 HP. Pentair Sta Rite Max-E-Pro Booster for Spa. Hayward Sand Filter. Raypak Heater.

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    Mod Squad jblizzle's Avatar
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    Re: Pentair 3/4 HP SuperFlo 2 Speed Pump

    How is your pump doing running your spa? Is it a Super Pump or a Super II?

    The 3/4 Superflo (like the Super Pump) is on the small size to support the typical flow requirements for a spa. I would think the 3/4 Whisperflo 2-speed (also 115V) might better support the spa jets
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
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  5. Back To Top    #5

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    Re: Pentair 3/4 HP SuperFlo 2 Speed Pump

    Quote Originally Posted by jblizzle View Post
    How is your pump doing running your spa? Is it a Super Pump or a Super II?

    The 3/4 Superflo (like the Super Pump) is on the small size to support the typical flow requirements for a spa. I would think the 3/4 Whisperflo 2-speed (also 115V) might better support the spa jets

    We have a separate 1 1/2 HP booster pump for spa jets. The 3/4 HP pump (SuperPump) circulates the water through the filter only.

    All a bit of a moot point since the place I was going to order the 2 speed pump from actually had it mislabelled. It was a single speed 3/4 HP pump. So today I found a local pump specialty repair shop and am going to try and get it rebuilt/repaired first. I will look at the Whisperflo 2 speeds (I thought they were single speed) in case the repair attempt fails.
    ~15500 gal (60000 L) IG Vinyl, built 2011. Spill-over Spa. SWG - Zodiac DuoClear. Hayward Super Pump 3/4 HP. Pentair Sta Rite Max-E-Pro Booster for Spa. Hayward Sand Filter. Raypak Heater.

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    Mod Squad jblizzle's Avatar
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    Re: Pentair 3/4 HP SuperFlo 2 Speed Pump

    Ah ... that explains it. Stick with the Superflo then ... no need for the larger Whisperflo for circulation only.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

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