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Thread: Hayward Tristar Dieing

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    Join Date
    May 2010
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    Hayward Tristar Dieing

    I do beleive my Hayard Tristar is Dieing. It is 1HP rated with a SF of 1.85HP. I am considering going with a two speed and from information gathered from different post here am thinking about the Pentair Whisperflow series. The PSI at the filter is 14psi. I do not know what the vacuum figure is on the suction side. One of the post indicated that the Whisperflow series actually pumped more water than a Tristar of the same HP rating, indicating that I might be able to step down to a 3/4HP. I want to be absolutely sure so I don't end up purchasing a pump that will not work properly. I think my pump curve landed in the middle of 3/4hp and 1hp and my wisdom says move to the next highest. What do ya'll think? Factors: .11/kwh, I run a poolcleaner(suction side poolverneugen) 1day a week for 10 hours (would a 3/4hp push it?)
    35K IG Vinyl 20 x 40 self built pool, Hayward Pro Series High-Rate Sand Filter 31" 98gal/min, Hayward TriStar 1.85hp, Hayward 400btu heater, BBB method w/Hypo, Jazz light w/matching fiber optic rope lighting around coping w/syncronized color wheels. Concrete Paver deck.

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    Mod Squad Bama Rambler's Avatar
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    Re: Hayward Tristar Dieing

    For a 35k gal pool I'd go with the 1 hp model. Do you have any water features that would require more flow?
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

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    Re: Hayward Tristar Dieing

    No water feaures just a standard plain jane pool.
    35K IG Vinyl 20 x 40 self built pool, Hayward Pro Series High-Rate Sand Filter 31" 98gal/min, Hayward TriStar 1.85hp, Hayward 400btu heater, BBB method w/Hypo, Jazz light w/matching fiber optic rope lighting around coping w/syncronized color wheels. Concrete Paver deck.

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    Mod Squad Bama Rambler's Avatar
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    Re: Hayward Tristar Dieing

    I'd go with the 1 hp then.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

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