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Thread: Tea Stain keeps coming back every time

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    Tea Stain keeps coming back every time

    TDS=5000 (I was told it's usually higher with SWG's (true / not true???)
    CYA= 40
    total chlorine 2.3
    free chlorine 2.3
    PH <6.2
    total alkalinity= 29
    adj. total alkalinity 17
    total hardness 320
    minerals= 3500

    here's the issue, beginning season, i had a nasty tea stain on the steps and walls but not on the floor of the pool. i lower the chlorine, then add the iron and copper stain remover (which lowers the ph and alkalinity) now once the stain is gone, i bring my chlorine back up to around 2.5, calcium up to around 320 min (I was told that to keep stains away your calcium needs to be well above 200) and then i slowly bring my alkalinity back up to the correct levels. i've used the pool store chain alkalinity and i've used baking soda. which ever one I use it takes about two days to slowly bring the alkalinity back up no more than two lbs at a time and i pre-dissolve it. every time i get just about done with adding the baking soda or the store brand alkalinity, the tea stain comes back. this is the third time the tea stain has come back. i'm about to make the pool a giant pond for fish. Does anyone have any clue's as to what the heck is going on here and how can i get rid of this stain? i've cleaned my cartridges, three times this season. if your needing any more info let me know. HELP PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!!
    Infinity Trilogy pool 14 X 32
    Pentair Filter with Cartridges
    1 hp Hayward variable speed pump
    mineral springs SWG

  2. Back To Top    #2

    Re: Tea Stain keeps coming back every time

    have you added a sequesterant?
    coloeb,
    20k gal. IG fiberglass/plaster rectangle 32'x16'
    Hayward Superpump 3/4 H.P. primary Hayward model 5060 Booster Pump
    Hayward Pro Series High Rate Sand Filter
    Pentair Model 320 automatic Chlorine/bromine in-line feeder

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    Re: Tea Stain keeps coming back every time

    Coloeb,

    I'm not even sure what sequesterant is. what is it and how can it help my stain issue?
    Infinity Trilogy pool 14 X 32
    Pentair Filter with Cartridges
    1 hp Hayward variable speed pump
    mineral springs SWG

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    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879

    Re: Tea Stain keeps coming back every time

    Sequestrant is a special chemical that binds to the dissolved metals in the water and keeps them from redepositing as stains. Some top brands are ProTeam's Metal Magic and Jack's Magic the Pink Stuff (regular), the Blue Stuff (fresh plaster), and the Purple Stuff (SWG). 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

  5. Back To Top    #5

    Re: Tea Stain keeps coming back every time

    ok, yes i do, i currently use the Purple Stuff and it still comes back. usually when im adding the alkalinity. it takes about 1 1/2 days while im adding the alkalinity. Today is Saturday and i started adding the alkalinity on Thursday and the stain is back on my steps.
    Infinity Trilogy pool 14 X 32
    Pentair Filter with Cartridges
    1 hp Hayward variable speed pump
    mineral springs SWG

  6. Back To Top    #6
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879

    Re: Tea Stain keeps coming back every time

    You aren't using enough sequestrant.
    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

  7. Back To Top    #7

    Re: Tea Stain keeps coming back every time

    i'll try again but i've poured a whole bottle in then the iron and copper remover.
    Infinity Trilogy pool 14 X 32
    Pentair Filter with Cartridges
    1 hp Hayward variable speed pump
    mineral springs SWG

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