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Thread: adjusting ph & alk

  1. Back To Top    #1

    Join Date
    Sep 2007
    Location
    Gloucester County, NJ
    Posts
    141

    adjusting ph & alk

    I need to bring my ph down to 7.2 and maintain it for a while to help in removing a stain using Jack's Blue Stuff. In testing for the stain, I needed he Copper & Scale stuff to remove he stain....problem is that I can not bypass the heater. According ot Jack's, I can use the Blue Stuff over a period of time and it should reduce the stain. My challenge is this....my Alk is currently about 70 and my ph is about 7.5. If I add acid, my Alk will also reduce....If I add baking soda, my Ph will increase. Which should I work on first?
    28,000 gallon gunite/white plaster with 30ft RBB and 2ft sheer descent, 100 sq ft thermaledge, 50sq ft spa w/ 6 jets
    2HP Jandy pump, 60sq ft Jandy DE filter, 400,000 BTU Jandy LX Nat Gas Heater, 2 Jandy color lights + Jandy color spa light, Jandy Aqualink RS6, Jandy AquaPure 1400

  2. Back To Top    #2
    Guest
    drop the pH and don't worry about the TA until the stain treatment is over.

  3. Back To Top    #3

    Join Date
    Sep 2007
    Location
    Gloucester County, NJ
    Posts
    141
    thanks waterbear.
    28,000 gallon gunite/white plaster with 30ft RBB and 2ft sheer descent, 100 sq ft thermaledge, 50sq ft spa w/ 6 jets
    2HP Jandy pump, 60sq ft Jandy DE filter, 400,000 BTU Jandy LX Nat Gas Heater, 2 Jandy color lights + Jandy color spa light, Jandy Aqualink RS6, Jandy AquaPure 1400

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