Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 12 of 12

Thread: Now just slightly green

  1. Back To Top    #1

    Now just slightly green

    So I have kept my chlorine high, rest of the water balances out. Got most of the green out. Now the pool is clear, I can see the bottom, but what I would describe as the color of the Gulf of Mexico... slightly green, slightly blue. At this point would an algaecide make sense to help kill of the last of it? Do I just need to be more patient?? Not sure where to go from here.... Thanks.
    Cleveland, Ohio
    IG 36,000 gallons. Vinyl Liner, Hayward ProGrid 3620 DE Filter, Hayward Super Pump, Hayward Gas Heater

  2. Back To Top    #2

    Join Date
    Aug 2010
    Location
    Dallas, TX
    Posts
    4,052

    Re: Now just slightly green

    I don't know what you consider "high", but green means it is time to shock. A set of test numbers would help to confirm. I would not recommend an algaecide other than chlorine.
    Built in 1957 44,000 gallon in-ground, Wet Edge Primera Stone in Sky Blue, Intelliflo VF Pump, 600 lb. Pentair Triton II TR-100 Sand Filter, CircuPool RG 60 Plus SWG, TF-100 test kit
    If TFP has helped you, please click to SUPPORT TFP!

  3. Back To Top    #3
    crookm11's Avatar
    Join Date
    Jun 2010
    Location
    Copperas Cove, Texas
    Posts
    422

    Re: Now just slightly green

    No need to add algaecide, just continue to shock your pool until you pass the Overnight Chlorine Loss Test.

    Post a set of current numbers.
    FC:
    CC:
    PH:
    TA:
    CH:
    CYA:
    Mark Crook
    13,500 Gallon 24' x 52" Intex Ultra Frame
    Intex Sand Filter and Pump, Intex SWG (All hard PVC plumbed)
    TFTestKit-100---Pool School---The Pool Calculator
    Location: Copperas Cove, Texas --- My Pool Build---Useful Links for Intex Pool Owners

  4. Back To Top    #4
    Mod Squad woodyp's Avatar
    Join Date
    Apr 2010
    Location
    East Texas
    Posts
    8,997

    Re: Now just slightly green

    Those algaecides are more of a preventative measure than a cure.
    16x32x52" Steel Cornelius Miramar AGP Vinyl liner 13,100 gal. Buried 2 ft.
    2 Speed Hayward Power-Flo Matrix 85 g.p.m. 22" 250lb. sand filter hard plumbed
    Pool Rover Jr., Pool Blaster Max, Diver Dave TF100 Test Kit/Speed Stir
    Margaritaville Frozen Concoction Maker, Liqour Chiller, & Drink Mixer & Party Tub----Collect 'um all!

  5. Back To Top    #5
    dmanb2b's Avatar
    Join Date
    Apr 2009
    Location
    NY
    Posts
    3,728

    Re: Now just slightly green

    Chlorine, Chlorine and Chlorine. Algaecide is a preventative at best and can not clear an algae outbreak.

    You are done shocking when the water is clear, cc is less than 0.5 an you ca pass the overnight fc loss test, until the hold fc at shock level.
    24'x52" AGP (13,500 Gallons), Intex SWG, (2)Solar Bear 4x20 panels, Hayward S220T Filter, 1/2hp Pentair Superflo

    Pool School, TFTestKits, Pool Calculator

  6. Back To Top    #6

    Re: Now just slightly green

    I have not had time to purchase one of the test kits suggested so I am still using my other one. Chlorine is well above the standard levels, actually turns the test water orange/red. Holding there overnight. the rest of the numbers are from the pool store test done on Sunday.
    ALK 118
    CYA 67
    PH 7.5
    Cleveland, Ohio
    IG 36,000 gallons. Vinyl Liner, Hayward ProGrid 3620 DE Filter, Hayward Super Pump, Hayward Gas Heater

  7. Back To Top    #7
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879

    Re: Now just slightly green

    With CYA at 67, shock level is in the mid 20s, which more or less corresponds to orange/red on the OTO chlorine test.

    Can you tell us more about how the water looks? Is the water a clear transparent green, or is it a murky opaque green?

    There is no point in using algaecide. Algaecide is best at preventing algae, and doesn't help much when you actually have algae.

    Assuming the water is cloudy, you should see it improving each day.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  8. Back To Top    #8

    Re: Now just slightly green

    Well this is the weird thing. It is clear but has a green tint. I can see all the way to the bottom of the deep end which is 10ft. I was expecting it to go milky white and then clear but nope. Totally clear, just a slight green tint. I am going to vacuum it tonight because now I can see how dirty it is. Should I just keep the chlorine level up and it will clear the green??
    Cleveland, Ohio
    IG 36,000 gallons. Vinyl Liner, Hayward ProGrid 3620 DE Filter, Hayward Super Pump, Hayward Gas Heater

  9. Back To Top    #9
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879

    Re: Now just slightly green

    That sounds like metals in the water. Try adding a startup dose of sequestrant. ProTeam's Metal Magic and Jack's Magic the Pink Stuff (regular), the Blue Stuff (fresh plaster), and the Purple Stuff (SWG) are some of the top sequestrants. You can also find many other brands with similar products, some of which are noticeably less expensive. Sequestrants based on HEDP, phosphonic acid, or phosphonic acid derivatives are the most effective.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  10. Back To Top    #10

    Re: Now just slightly green

    even though both copper and iron tested at 0??
    Cleveland, Ohio
    IG 36,000 gallons. Vinyl Liner, Hayward ProGrid 3620 DE Filter, Hayward Super Pump, Hayward Gas Heater

  11. Back To Top    #11
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879

    Re: Now just slightly green

    Yes. When the metals are turning the water green they will be in small crystals instead of dissolved, and the metal level will test at zero.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  12. Back To Top    #12

    Re: Now just slightly green

    Thanks!! I am thinking at this point that metal is the problem. Water is very clear now but still tinted green. Is there a cost effective way to get rid of it?? Pool store has metal stuff but it is $18.99 to treat 10k gallons... I have 36k gallons. Is the cheap stuff from Walmart effective??
    Cleveland, Ohio
    IG 36,000 gallons. Vinyl Liner, Hayward ProGrid 3620 DE Filter, Hayward Super Pump, Hayward Gas Heater

Posting Permissions

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