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Thread: Time for a new pump..

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    Time for a new pump..

    So my Pentair Whisperflow-26 died and I am shopping for a new pump.

    looking for some opinions on what 2-speed pumps would work well with the filter and 2" lines that I already have.
    30 year old, 17,000 gallon pool (w/spa), IG, Plaster, Pentair Triton II TR-100 600#Sand Filter, Pentair Superflo 340043 1.5 Hp pump

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    bobodaclown's Avatar
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    Re: Time for a new pump..

    Why not change out the motor with a 2-speed one. Save some funds.
    I believe you'll need a B2983.
    56Y and 48Y Frame Pump Motor for Threaded Shaft Square Pool & Spa
    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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    Re: Time for a new pump..

    Quote Originally Posted by bobodaclown View Post
    Why not change out the motor with a 2-speed one. Save some funds.
    I believe you'll need a B2983.
    56Y and 48Y Frame Pump Motor for Threaded Shaft Square Pool & Spa
    From the noises it was making it sounds like both the impeller and the motor bearings are shot.

    Plus, the pump is in an awkward location with the motor barely an inch away from our neighbor's fence so there is really no way to change out the motor without removing the whole pump assembly and re-plumbing everything anyway.
    30 year old, 17,000 gallon pool (w/spa), IG, Plaster, Pentair Triton II TR-100 600#Sand Filter, Pentair Superflo 340043 1.5 Hp pump

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    mas985's Avatar
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    Re: Time for a new pump..

    Impellers almost never go bad so more than likely it is just the bearings and perhaps the motor seal. Given you have a spa (i.e. you can't downsize), I would have recommended the same pump but in a two speed anyway so you might as well save some money and just replace the motor but it is up to you.

    But if you do get a new motor, you will want the B2982. The WF-26 is a 1.5 HP uprated pump which is the same as a 1 HP full rated pump.

    A 1 1/2 HP up rated pump seems small for a spa. How many jets do you have in the spa and do they all feel fairly strong?
    Mark
    Hydraulics 101; Pump Ed 101; Pump/Pool Spreadsheets; Pump Run Time Study; DIY Acid Dosing; DIY Cover Roller
    18'x36' 20k plaster, MaxFlo SP2303VSP, Aqualogic PS8 SWCG, 420 sq-ft Cartridge, Solar, 6 jet spa, 1 HP jet pump, 400k BTU NG Heater

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    Re: Time for a new pump..

    Quote Originally Posted by mas985 View Post
    Impellers almost never go bad so more than likely it is just the bearings and perhaps the motor seal. Given you have a spa (i.e. you can't downsize), I would have recommended the same pump but in a two speed anyway so you might as well save some money and just replace the motor but it is up to you.

    But if you do get a new motor, you will want the B2982. The WF-26 is a 1.5 HP uprated pump which is the same as a 1 HP full rated pump.

    A 1 1/2 HP up rated pump seems small for a spa. How many jets do you have in the spa and do they all feel fairly strong?
    We don't use the spa often but I have a booster for it for when we do.

    Without the booster the spa is "okay", with it turned on it's like sitting in a blender on "Puree".
    30 year old, 17,000 gallon pool (w/spa), IG, Plaster, Pentair Triton II TR-100 600#Sand Filter, Pentair Superflo 340043 1.5 Hp pump

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    mas985's Avatar
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    Re: Time for a new pump..

    By booster are you talking about a blower or another pump? The blower just adds air which changes the effect (pulsating). The pump generates the water power.
    Mark
    Hydraulics 101; Pump Ed 101; Pump/Pool Spreadsheets; Pump Run Time Study; DIY Acid Dosing; DIY Cover Roller
    18'x36' 20k plaster, MaxFlo SP2303VSP, Aqualogic PS8 SWCG, 420 sq-ft Cartridge, Solar, 6 jet spa, 1 HP jet pump, 400k BTU NG Heater

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    Re: Time for a new pump..

    Quote Originally Posted by mas985 View Post
    By booster are you talking about a blower or another pump? The blower just adds air which changes the effect (pulsating). The pump generates the water power.
    3/4 HP booster pump. It's plumbed so that I can bypass it or divert the line it is on either to the spa or to the output in the pool that the Polaris connects to.

    But I also have a blower too... never use the thing.
    30 year old, 17,000 gallon pool (w/spa), IG, Plaster, Pentair Triton II TR-100 600#Sand Filter, Pentair Superflo 340043 1.5 Hp pump

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    mas985's Avatar
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    Re: Time for a new pump..

    Hmm. Seems like a kludge. That is not a normal setup.

    Your main pump should probably be a little larger to properly run the spa so you don't have to use a cleaner pump.
    Mark
    Hydraulics 101; Pump Ed 101; Pump/Pool Spreadsheets; Pump Run Time Study; DIY Acid Dosing; DIY Cover Roller
    18'x36' 20k plaster, MaxFlo SP2303VSP, Aqualogic PS8 SWCG, 420 sq-ft Cartridge, Solar, 6 jet spa, 1 HP jet pump, 400k BTU NG Heater

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    Re: Time for a new pump..

    Quote Originally Posted by mas985 View Post
    Hmm. Seems like a kludge. That is not a normal setup.

    Your main pump should probably be a little larger to properly run the spa so you don't have to use a cleaner pump.
    Setup came with the house. Not a surprise that it is odd though, a lot of other stuff here is as well. I think the previous owner thought of himself as being "handy" and put in a lot of these things on his own.

    Half the wiring in the house was originally running through one GFI circuit. Took me over two years to figure that one out.
    30 year old, 17,000 gallon pool (w/spa), IG, Plaster, Pentair Triton II TR-100 600#Sand Filter, Pentair Superflo 340043 1.5 Hp pump

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    Mike Hawk's Avatar
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    Re: Time for a new pump..

    Hey OP, I have the same pump as you and my motor shorted out so I was in the same predicament as you.

    Even though I had to replace ALL my internals, I still came out way cheaper by 'simply' upgrading from a 1spd 1.65sfhp to a 2spd 2.205sfhp instead of just buying a whole new pump/motor combo

    Post 23 has the model #s of what I bought to do the upgrade.
    1.65sfhp single speed is dead. Looking to upgrade. Can someone look over my stats? - Page 2

    If your internals/plate etc are still good and you stay at the same SFHP all you'd need to buy would be a motor, a seal kit, and decide how to control the speed selection. You'd save a lot of green.
    2007 Gunite 15k Pump: Whisperflo Motor: B2983 2spd 2.2/0.28 SFHP Sand Filter: TR100 SWG: Aqua Rite T15 Timer: PF1102T w/ redneck SPDT toggle switch Vacuum: Milliard 19" manual / PoolCleaner 2X auto

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    Re: Time for a new pump..

    Couple of days ago I ran across a Pentair 340043 Superflo 2 speed pump as a deal on Amazon for $312 so I just grabbed that.

    Only odd thing was that it came with the standard 1 speed back plate installed (no "hi/lo" switch) but with the switch plate (and attached wiring) in a separate parts bag that I had to wire in myself. Took me a couple of minutes to figure out the wiring (the diagram on the side of the pump is tiny and nearly illegible) but I managed to get it wired in correctly.

    Installed it today and it purrs like a kitten.
    30 year old, 17,000 gallon pool (w/spa), IG, Plaster, Pentair Triton II TR-100 600#Sand Filter, Pentair Superflo 340043 1.5 Hp pump

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    Mod Squad pooldv's Avatar
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    Re: Time for a new pump..

    Good price for a good pump!
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    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

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    Re: Time for a new pump..

    New pump is a dream and running it on low seems to promote MUCH better filtration over the single speed pump.

    Since it was over two weeks without a pump, the pool turned back into a green swamp.

    Last time that happened (a couple of years ago) it took me four weeks to get the water clear again.

    This time... four days. The sand filter is doing a tremendously better job of trapping the fine particles of dead algae with the pump on low speed than it ever did before.

    So... Happy.

    30 year old, 17,000 gallon pool (w/spa), IG, Plaster, Pentair Triton II TR-100 600#Sand Filter, Pentair Superflo 340043 1.5 Hp pump

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    Mod Squad pooldv's Avatar
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    Re: Time for a new pump..

    Excellent! Yes, filters are much more efficient with pumps running on low speed.

    For future reference, keep testing and adding bleach to your pool and brush it to mix in the bleach to keep it from getting swampy. Not that you'll have to worry about it for a long time!

    Happy now? Wait til you get your electric bill!
    TFP Moderator
    If TFP helped you or saved you money - Become a TFP Supporter! <--Click here
    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

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