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Thread: New pump in, and my test results

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    New pump in, and my test results

    The new pump went in yesterday afternoon and it's been pumping all night. It's so quiet! Also, the bubbles that used to fill the old pump's window are now gone. I think it was just sucking air from pulling too hard!

    That said, had my water tested last night after letting it run for a couple of hours. Here's the results:

    Total Chlorine - 5PPM
    Free Chlorine - 5PPM
    Combined Chlorine - 0.0PPM
    pH - 7.2
    Acid Demand - 0
    Base Demand - 0
    Total Alkalinity - 110PPM
    Calcium Hardness - 170PPM
    Stabilizer - 50PPM
    Total Dissolved Solids - 1300PPM

    Given these numbers, what does the pool need to go from the milky green it is now to crystal clear and trouble free? Just more pump time?
    Clearwater, Florida

    12,000 gallon kidney shaped gunite pool
    Pentair Whisperflo 3/4HP Pump
    Pentair CCP420 420sq/ft Cartridge Filter
    Pentair Intellibrite 5G 120V Pool Light

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    In the Industry
    duraleigh's Avatar
    Join Date
    Apr 2007
    Location
    Sebring, Florida
    Posts
    28,406

    Re: New pump in, and my test results

    Shock your pool.

    Raise your FC up to around 15-18ppm and hold it there until your pool clears.

    Based on your description, you should see improvement overnight and possibly crystal clear in a day or so. The important thing to remember is, regardless how long it takes, keep your FC at that level until the pool is clear.

    There is an article on "how to shock your pool" in Pool School that goes into more detail.
    Dave S. - Forum owner
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Join Date
    Jan 2009
    Location
    Cupertino, CA
    Posts
    1,966

    Re: New pump in, and my test results

    Is this a plaster/gunite/pebble/etc pool? IF so, _after_ you're done shocking and clearing up the green, you might want to raise your CH a bit, to help protect the plaster from CH leaching.
    If you have a vinyl liner, you're fine.
    --paulr
    BBB "Intermediate Swimmer"
    IG plaster pool 18.5K gal, Hayward Pro-Grid DE filter, 3/4 HP Hydramax II; Polaris 380, 3/4 HP booster
    AG spa 325 gal, probably Sundance of some kind
    Water testing instructions on one page

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    Re: New pump in, and my test results

    I believe this is a concrete pool. Walls feel concrete-like in texture.
    Clearwater, Florida

    12,000 gallon kidney shaped gunite pool
    Pentair Whisperflo 3/4HP Pump
    Pentair CCP420 420sq/ft Cartridge Filter
    Pentair Intellibrite 5G 120V Pool Light

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