Hot Tub Water Chemistry

3,857 topics in this forum

1. Ph normal - alkalinity low

   By Matt-17, February 10, 2021
   • 1 reply
   • 839 views
   • 
   • Nettie
   • February 16, 2021

3. Build up under coping

   By Nettie, February 16, 2021
   • 2 replies
   • 876 views
   • 
   • RDspaguy
   • February 16, 2021

4. Filter Clogged With Milky White Substance

   By driver_8, May 6, 2007
   • 16 replies
   • 20.2k views
   • 
   • Masood
   • February 16, 2021

5. Allergic To Hot Tub?

   By BitsnBear, January 17, 2010
   • 10 replies
   • 7.1k views
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   • Gary I
   • February 15, 2021

6. Help with CC going up, please?

   By DougA, February 12, 2021
   • 1 reply
   • 647 views
   • 
   • Apollothesun
   • February 14, 2021

7. Greenish water in our bromine spa

   By ladyinthewater, February 13, 2021
   • 0 replies
   • 446 views
   • 
   • ladyinthewater
   • February 13, 2021

8. Can you add large amount of Sodium Bisulfate (12 oz) at one time in hot tub after drain & fill?

   By DougA, February 12, 2021
   • 0 replies
   • 525 views
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   • DougA
   • February 12, 2021

9. Spa boy

   By Satdown, February 11, 2021
   • 0 replies
   • 583 views
   • 
   • Satdown
   • February 11, 2021

10. Biguanide

    By Nitro, July 24, 2009
    • 7 replies
    • 8k views
    • 
    • Shalena
    • February 9, 2021

11. Alkalinity Way Too High

    By zich6, February 7, 2021
    • 0 replies
    • 784 views
    • 
    • zich6
    • February 7, 2021

12. Hot tub rash! Help please?

    By Angie Bee, August 16, 2019
    • 9 replies
    • 2.2k views
    • 
    • Jonnyb
    • February 7, 2021

13. Aquafinesse Help

    By daveybor, August 15, 2008
    • 13 replies
    • 14.3k views
    • 
    • Klarkkent71
    • February 6, 2021

14. Where Can I Buy Clorox Bleach In Uk?

    By jacko64, January 26, 2007
    • 11 replies
    • 38.8k views
    • 
    • MASB UK
    • February 3, 2021

15. Why have CYA in a chlorine spa?

    By DougA, February 2, 2021
    • 1 reply
    • 669 views
    • 
    • waterbear
    • February 3, 2021

16. Saltwater spas--effectiveness & do they damage equipment or spa????

    By DougA, January 31, 2021
    • 2 replies
    • 657 views
    • 
    • waterbear
    • February 3, 2021

17. Frog @ease and Nature2

    By Ahoya06, February 3, 2021
    • 0 replies
    • 744 views
    • 
    • Ahoya06
    • February 3, 2021

18. Spa lungs

    By Lusa, February 1, 2021
    • 3 replies
    • 785 views
    • 
    • RDspaguy
    • February 2, 2021

19. Clear water BUT continual chlorine loss

    By SherryRae, January 24, 2021
    • 8 replies
    • 1.8k views
    • 
    • SherryRae
    • February 1, 2021

20. Taylor K2006 Test Kit - Good Canadian Purchase Option

    By dashmer, January 29, 2021
    • 0 replies
    • 1k views
    • 
    • dashmer
    • January 29, 2021

21. alkalinity keeps jumping

    By contact634, January 28, 2021
    • 0 replies
    • 595 views
    • 
    • contact634
    • January 28, 2021

22. Keeping Free Choline at 0.5--1.0 using Nature2 and MPS

    By DougA, January 28, 2021
    • 0 replies
    • 639 views
    • 
    • DougA
    • January 28, 2021

23. Water testing for spa?

    By DougA, January 25, 2021
    • 7 replies
    • 2.1k views
    • 
    • waterbear
    • January 28, 2021

24. pH Keeps Rising

    By Joanne78, January 28, 2021   

    • ph
    • alkalinity
    • (and 1 more)

      Tagged with:

      • ph
      • alkalinity
      • chemistry
    • 1 reply
    • 668 views
    • 
    • waterbear
    • January 28, 2021

25. Test strips vs. Taylor

    By Sarah M, January 27, 2021
    • 4 replies
    • 1.6k views
    • 
    • waterbear
    • January 28, 2021

26. Just Cleaned Filter, Now New Problem

    By brian, January 8, 2006
    • 8 replies
    • 6k views
    • 
    • Nfrisch37
    • January 27, 2021