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Thread: Pump & filter recommendations for 28' Matrix

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    Pump & filter recommendations for 28' Matrix

    Getting close to ordering our first pool and equipment. The more I research about pumps and filters, the more confused I get. Do you have any recommendations for a pump & filter for a 28' Sharkline Matrix? Is it best to buy the pump and filter separately or sold as a combo?
    I have been leaning toward a Pentair SD80 sand filter but would like any other suggestions to consider. Thanks!
    Sharkline Matrix 28', Pentair SD80 sand filter, Pentair Optiflo 1hp/2spd pump, Intellichlor ic40 (installed 7/2013)

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    linen's Avatar
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    Re: Pump & filter recommendations for 28' Matrix

    As mentioned in your other thread, the SD80 is a good match for your pool. Since it is a fairly large pool, it is unlikely you will find a large enough filter that is sold as a combo. Again, we would recommend a minimum 3.2 sq.ft. filter for your ~18000 gallon pool. And as mentioned, we would recommend a 2-speed pump.

    For pumps either the Pentair dynamo or Hayward matrix 1 hp 2-speeds would be good choices.
    TFP Expert who uses Pool School and my TF100 test kit along with PoolMath for my: Round 11K gallon AGP with deep end, 20" sand filter, Matrix 1hp 2spd, 6 2ftX20ft solar panels (and solar cover!), Intex SWCG (copper bars disconnected) and a Rubadub hot tub (chlorine). The SLAM process is not finished until: 1. CC < 0.5 ppm, 2. An OCLT < 1.0 ppm and, 3. The water is crystal clear.

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    Re: Pump & filter recommendations for 28' Matrix

    Trying to understand the reasoning behind the recommendations. What are the advantages of a 2 spd. pump? What makes a 1 hp more recommended than a 1-1/2hp pump? This is all new to me, so please forgive any dumb questions I may have.
    Sharkline Matrix 28', Pentair SD80 sand filter, Pentair Optiflo 1hp/2spd pump, Intellichlor ic40 (installed 7/2013)

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    linen's Avatar
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    Re: Pump & filter recommendations for 28' Matrix

    Good questions!
    Quote Originally Posted by afreil
    What are the advantages of a 2 spd. pump?
    Low flow rates are generally better for filtering and also require significantly less power. In most cases running 2X time on the low speed filters the same amount of water at ~1/2 the power that you would use if filtering 1X time on high speed. So it ends up saving money

    Quote Originally Posted by afreil
    What makes a 1 hp more recommended than a 1-1/2hp pump?
    Generally, lower speed is better for filter efficiency. It is a fallacy that bigger is better with pool pumps. The only time larger pumps are warranted is when some water feature requires it (spa jets, waterfalls, etc.).

    Keep the questions coming
    TFP Expert who uses Pool School and my TF100 test kit along with PoolMath for my: Round 11K gallon AGP with deep end, 20" sand filter, Matrix 1hp 2spd, 6 2ftX20ft solar panels (and solar cover!), Intex SWCG (copper bars disconnected) and a Rubadub hot tub (chlorine). The SLAM process is not finished until: 1. CC < 0.5 ppm, 2. An OCLT < 1.0 ppm and, 3. The water is crystal clear.

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    Re: Pump & filter recommendations for 28' Matrix

    When you say 3.2 sq. ft. filter minimum, does that refer to the "effective filtration area"?
    Should I stick with the same brand for both filter and pump, or does it matter?
    Sharkline Matrix 28', Pentair SD80 sand filter, Pentair Optiflo 1hp/2spd pump, Intellichlor ic40 (installed 7/2013)

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    Re: Pump & filter recommendations for 28' Matrix

    Yes.
    You can mix/match your pump/filter brands(as long as the ratings are compatable) ,although sometimes you can get a better deal when you buy the same brand filter and pump from the same vendor at the same time.(promo's)
    Rob

    Cozumel AGP 24' 14,700 gallons
    Pentair Dynamo 1.5 hp pump
    Sta-rite Cristol-Flo II 2.3sq.ft. sand filter
    SWCG,Uni-bead liner
    Borates
    TF-100 Testkit....$68,cheap insurance for a trouble free pool season

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    linen's Avatar
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    Re: Pump & filter recommendations for 28' Matrix

    CB is right on with his answers.

    It is the "effective filtration area".

    You definitely can mix and match pumps and filters (if you do not buy a combo obviously). I have a Hayward pump and Pentair filter.
    TFP Expert who uses Pool School and my TF100 test kit along with PoolMath for my: Round 11K gallon AGP with deep end, 20" sand filter, Matrix 1hp 2spd, 6 2ftX20ft solar panels (and solar cover!), Intex SWCG (copper bars disconnected) and a Rubadub hot tub (chlorine). The SLAM process is not finished until: 1. CC < 0.5 ppm, 2. An OCLT < 1.0 ppm and, 3. The water is crystal clear.

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