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Thread: Dull Water and Hard Water Buildup

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    Join Date
    Mar 2012
    Sacramento, CA

    Dull Water and Hard Water Buildup

    Chlorine and ph are good. Water seems dull. I'm very sensitive to the clarity of the water and I know when something is off. We added a flocculant since we had a lot of debris from some landscaping work and it is better but not where it should be. Also, we have lots of had water build up. Any suggestions?
    Approx. 20,000 gallon In Ground pool/spa combo, Pebbletec Finish, Intelliflo 3HP Variable Speed Pump, Pentair Clean & Clear 420 Cartridge Filter., Intellitouch system, Hayward heater (and that's about all I know for now)

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    Mod Squad tim5055's Avatar
    Join Date
    May 2014
    Franklin, NC

    Re: Dull Water and Hard Water Buildup

    Stop using floculant would be my first suggestion.

    You say FC & pH are good, but wat is good? What is your CYA.

    Dull,water is usually the first hint that algae is rearing its ugly head.
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  3. Back To Top    #3

    In the Industry

    duraleigh's Avatar
    Join Date
    Apr 2007
    Sebring, Florida

    Re: Dull Water and Hard Water Buildup

    Flocculant often does more harm than good. Your filter and pump should be perfectly capable of keeping your pool crystal clear.

    That said, if you FC is too low for the CYA level, you can easily have algae that will make your water dull. Posting up a complete set of current test results would probably be very helpful.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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