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Thread: So, I'm an ignorant newbie that needs help...

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    Join Date
    Jun 2016
    Location
    Monterrey, Mexico
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    Question So, I'm an ignorant newbie that needs help...

    Hi guys, I'm Puro from Mexico, an ignorant newbie with a lame degree in business and not engineering.

    So I need a lot of help.

    I'm trying to calculate a filter and pump size for my new pool but I'm getting confused with al the wisdom here.

    Lets see if with this simple info you guys can help me.

    Pool is 7,500 gallons
    In-ground
    Rectangular shaped 19'x12'x4.5'
    Pump will be 27 feet far from the edge of the pool
    Goal is to cycle the water two times a day in 8 hours

    And my next question would be if I could pair a sand filter with a variable speed pump (an installer told me that i NEED a cartridge filter if I want a VS pump)

    THANKS GUYS!!!

  2. Back To Top    #2
    Mod Squad jblizzle's Avatar
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    May 2010
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    Tucson, AZ
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    Re: So, I'm an ignorant newbie that needs help...

    Welcome to TFP!!!

    Pump size: Basically as small as you can go and achieve the desired flow rates. No spa or water features? Then a 1HP 2-speed is plenty of one of the smaller 1.5HP VS pumps.

    Filter type: your installer does not know what they are talking about. You can use any filter type with a VS pump.

    Filter size: These are my suggested minimum sizes for your size pool:
    Cartridge: 100sqft ... big is better (fewer cleanings)
    Sand: 16" diameter ... again bigger is better.

    Also note there is no need to "cycle" water, especially 2 times in 8 hours ... although that flow rate is easily achievable.
    Check out: Determine Pump Run Time

    Please add your location (City, State or City, Country) to your profile and pool details to your signature as described HERE as it will help us help you.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
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  3. Back To Top    #3

    Join Date
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    Monterrey, Mexico
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    Re: So, I'm an ignorant newbie that needs help...

    Thanks jblizzle

    So far an equipment supplier has suggested a 17" Hayward SwimPro sand filter with a .75Hp Pump

    I'm still undecided between a VS or a single speed pump because of initial cost.

    How do you see the above recommendation?

  4. Back To Top    #4
    Mod Squad jblizzle's Avatar
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    Re: So, I'm an ignorant newbie that needs help...

    That filter is fine, but I would go with at least a 2-speed pump so you can run on low most of the time and save $ on electricity.
    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!

  5. Back To Top    #5

    Join Date
    Jun 2016
    Location
    Monterrey, Mexico
    Posts
    34

    Re: So, I'm an ignorant newbie that needs help...

    Thanks!
    11'x21'x4.4'
    7.0K IG Concrete pool
    Hayward Swimpro 19" Sand Filter
    1HP pump
    Pentair Intellibrite 5G 500W equivalent white light

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