Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 9 of 9

Thread: SOS - I am new please help - Green pool water

  1. Back To Top    #1

    Join Date
    May 2015
    Location
    Houston Texas
    Posts
    3

    SOS - I am new please help - Green pool water

    I am new to TFP, my pool guy left so I have to take care the pool (fresh water) from now. I have read all the Pool School topics and have no clue what to do next

    Here are the current reading from Taylor 2006 test kit (I got this kit yesterday)

    PH: 7.4
    TA: 130
    FC: 11
    CC: 0.4
    CH: 420
    CYA: >100. I guess 140

    Pool is filtering and skimming for 4 days now but there is no improvement in water clarity, I can't see the bottom of the pool 3 - 5ft deepth and it is turning green/yellow
    I just added last night 1 bottle of KEMTEK chlorinating liquid, 4 bags of hth shock and 5 chlorine tablets to the skimmer basket to keep algea returning. The DE filter has been cleaned 3 days ago
    I have been fighting almost a week without any improvement. Can you please help

  2. Back To Top    #2
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: SOS - I am new please help - Green pool water

    Welcome to TFP!!!

    Well, your FC level is too low for your CYA to eradicate the algae ... BUT ...
    Your CYA is way too high ... and the bags of shock and the tablets are making it worse.
    You need to replace at least 50% of your water and then stick to liquid chlorine and follow the ShockLevelAndMAINTAIN Process

    These are good reading too:
    Defeating Algae
    Turning Your Green Swamp Back into a Sparkling Oasis

    I know you said you have read all of Pool School, but I think you should review these:
    ABCs of Water Chemistry
    Recommended Pool Chemicals
    How to Chlorinate Your Pool
    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!

  3. Back To Top    #3
    Isaac-1's Avatar
    Join Date
    May 2010
    Location
    SW Louisiana
    Posts
    6,711

    Re: SOS - I am new please help - Green pool water

    Like Jason says those solid chlorine products are just driving your CYA higher and making the situation worse, it is almost impossible to clear up a green mess when your CYA level is over 100, and since there are no water restrictions I am aware of in Houston, and there is about 6 inches of rain in the forecast for next week, now is a good time to start draining and replacing water. We generally advise doing water replacement in steps draining 25-30% of the water at a time and refilling to minimize chances of damage to your pool, as pools can float out of the ground if drained in locations with a high water table, or vinyl liners can lift and wrinkle is you don't keep at least 6-8 inches of water on them at all times.

    Ike

    p.s. please also list your pool type and equipment in your signature so we can know what you have at a glance
    Indoor 20x40 35,000 gallon vinyl pool with 1.5 HP 2 speed Jandy FloPro pump, Hayward EC75 Perflex DE filter, 11 4x12 Techno-Solis solar panels w/ Aquasolar controller, Aquabot Turbo T Robot Cleaner. Also LMI metering chlorine dispenser pump and HotSpring Jetsetter
    I use and endorse TFtestKits TF-100 from http://tftestkits.net
    ~Remember TFP counts on your donations to keep this site ad free~

  4. Back To Top    #4

    Join Date
    May 2015
    Location
    Houston Texas
    Posts
    3

    Re: SOS - I am new please help - Green pool water

    Thanks so much for your quick response Jblizzle
    I am re_reading the Pool School, meanwhile should I keep the pump running ? is there any less expensive way instead of replacing 50% of the pool water ( it's 40000 gallons pool)
    I appreciate all your inputs
    GREEN POOL EXPERT - 2 - CRYSTAL POOL

    40K IG Pebblesheen pool, 2.5HP Pumps, Pentair FNS Plus DE filter P/N 180009 FLT FNS PLS 60
    Polaris 380, TAYLOR K-2006 Complete Swimming Pool/Spa Test Kit FAS-DPD K2006 Chlorine

  5. Back To Top    #5
    Patrick_B's Avatar
    Join Date
    Jun 2011
    Location
    Midland TX
    Posts
    15,001

    Re: SOS - I am new please help - Green pool water

    Unfortunately no. Although I don't like using up water, it really is the only way still. As for cost, it shouldn't be that much.
    TFP Moderator
    Essential Links:
    ABC's Of Pool Chemistry, Test Kits, SLAM Your Pool
    28K Gal IG FreeForm, CLI Quartz, Pentair 36"SF & VS Pump, Dolphin M5, Rheem

  6. Back To Top    #6
    DaninFLA's Avatar
    Join Date
    Apr 2015
    Location
    Sarasota, FL
    Posts
    1,011

    Re: SOS - I am new please help - Green pool water

    nope, you are gonna have to drain and refill...but I would get a good reading on your CYA first. dilute the sample by 50% with tap water...then get result and double. test only goes up to 100, so need to find out exact number so you know how much to drain
    Dan
    9,000 gallon in-ground Saltwater pool, plaster, cartridge filer, 1.0 hp pump, Hayward T-15 SWCG, TF-100
    Pool School - Chlorine / CYA Chart; Pool School - Test Kits Compared;

  7. Back To Top    #7

    Join Date
    May 2015
    Location
    Houston Texas
    Posts
    3

    Re: SOS - I am new please help - Green pool water

    Thanks all.

    Should I remove all the chlorine tables from the basket since it does increase CYA then starting to drain the pool ?
    GREEN POOL EXPERT - 2 - CRYSTAL POOL

    40K IG Pebblesheen pool, 2.5HP Pumps, Pentair FNS Plus DE filter P/N 180009 FLT FNS PLS 60
    Polaris 380, TAYLOR K-2006 Complete Swimming Pool/Spa Test Kit FAS-DPD K2006 Chlorine

  8. Back To Top    #8
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: SOS - I am new please help - Green pool water

    Yup. That is how you start.
    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!

  9. Back To Top    #9
    Isaac-1's Avatar
    Join Date
    May 2010
    Location
    SW Louisiana
    Posts
    6,711

    Re: SOS - I am new please help - Green pool water

    Yes, high CYA is primarily caused by over use of dichlor and trichlor, so while they are more convenient to use, than liquid chlorine / bleach, they do come with this one BIG downside, so should generally be saved for times when you need to slightly adjust your CYA level (due to splash out / overflow), or when you need to be out of town and can't dose the pool daily with liquid chlorine products.


    Ike

    p.s. Since Houston tends to have fairly soft water, you may be able to use the solid (flake) form of chlorine call Cal-Hypo some of the time which raises both chlorine and calcium (CH), but again there you have to worry about your CH getting too high, so it is again another balancing act, so for now I would suggest keeping it simple and stick with liquid chlorine / bleach as your only source of chlorine.
    Indoor 20x40 35,000 gallon vinyl pool with 1.5 HP 2 speed Jandy FloPro pump, Hayward EC75 Perflex DE filter, 11 4x12 Techno-Solis solar panels w/ Aquasolar controller, Aquabot Turbo T Robot Cleaner. Also LMI metering chlorine dispenser pump and HotSpring Jetsetter
    I use and endorse TFtestKits TF-100 from http://tftestkits.net
    ~Remember TFP counts on your donations to keep this site ad free~

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •