Hot Tub Water Chemistry

3,594 topics in this forum

1. How to use Bromine (3 step method)

   By waterbear, May 9   

   • hot tub santizer
   • waterbear
   • (and 3 more)

     Tagged with:

     • hot tub santizer
     • waterbear
     • 3 step bromine
     • bromine
     • howto
   • 0 replies
   • 555 views
   • 
   • waterbear
   • May 9

3. Dichlor/bleach Method In A Nutshell 1 2 3 4

   By Nitro, December 12, 2009
   • 80 replies
   • 80k views
   • 
   • waterbear
   • April 21

4. Lowering Total Alkalinity 1 2 3 4

   By Nitro, April 3, 2009
   • 90 replies
   • 178.4k views
   • 
   • mscdman
   • April 15

5. Some truths on bleach dosing

   By waterbear, March 22
   • 5 replies
   • 845 views
   • 
   • Fingerstank
   • March 29

6. Nitro's Approach To Water Maintaince 1 2 3 4 7

   By Nitro, November 10, 2008
   • 171 replies
   • 189.9k views
   • 
   • Fingerstank
   • March 29

7. Bromine use in spas

   By RDspaguy, July 31, 2020
   • 3 replies
   • 2.3k views
   • 
   • waterbear
   • March 3

8. Please Learn From My Mistakes And Medical Bills. 1 2

   By Itchy and Scratchy, February 10, 2011
   • 31 replies
   • 91.2k views
   • 
   • RDspaguy
   • February 10

9. Decontamination 1 2 3 4 5

   By Nitro, March 30, 2009
   • 116 replies
   • 105.9k views
   • 
   • waterbear
   • January 24

10. Some truths about pH and TA

    By waterbear, November 9, 2020
    • 0 replies
    • 1.5k views
    • 
    • waterbear
    • November 9, 2020

11. Chlorine Demand 1 2

    By Nitro, February 11, 2009
    • 28 replies
    • 45.7k views
    • 
    • _Samuel_
    • April 7, 2020

12. Lowering Total Akalinity Howto, Not Just For Pools!

    By waterbear, March 31, 2012
    • 0 replies
    • 13.9k views
    • 
    • waterbear
    • March 31, 2012

13. Water hardness

    By moeoberlin, 9 hours ago
    • 2 replies
    • 13 views
    • 
    • RDspaguy
    • 22 minutes ago

14. Yellow/white slimy flakes in my hot tub (Giant but break down easy)

    By Jessmzam, June 8   

    • hottub
    • calcium
    • (and 2 more)

      Tagged with:

      • hottub
      • calcium
      • biofilm
      • water
    • 1 reply
    • 71 views
    • 
    • waterbear
    • 3 hours ago

15. Dichlor then bleach method - Use of Other Chemicals

    By dashmer, May 3
    • 6 replies
    • 297 views
    • 
    • dashmer
    • Sunday at 12:31 PM

16. Cleanwater Blue system

    By Suesea, June 9
    • 1 reply
    • 71 views
    • 
    • waterbear
    • Thursday at 03:53 AM

17. Hot tub will not hold chlorine, even after plumbing flush

    By marleecj, June 8   

    • sanitizer
    • chlorine
    • (and 3 more)

      Tagged with:

      • sanitizer
      • chlorine
      • chlorine problems
      • free chlorine
      • troubleshooting
    • 5 replies
    • 137 views
    • 
    • waterbear
    • Thursday at 03:48 AM

18. How to test for low calcium in spa?

    By Figi4, June 8
    • 0 replies
    • 57 views
    • 
    • Figi4
    • June 8

19. Slimy white things

    By mike62858, June 6
    • 0 replies
    • 98 views
    • 
    • mike62858
    • June 6

20. Can't lower PH for decontamination

    By Figi4, May 26   

    • spa
    • ph
    • (and 2 more)

      Tagged with:

      • spa
      • ph
      • muriatic
      • decontamination
    • 7 replies
    • 217 views
    • 
    • Figi4
    • June 4

21. 35% Hydrogen Peroxide 1 2

    By Nealv9z, August 26, 2017   

    • hydrogen peroxide
    • 45 replies
    • 16.6k views
    • 
    • waterbear
    • June 3

22. Calcium Stearate (White Flakes) 1 2 3

    By arobbert, July 2, 2016
    • 70 replies
    • 17.1k views
    • 
    • MIKE O69
    • May 31

23. Ph and alkalinity

    By KMills, May 25
    • 1 reply
    • 176 views
    • 
    • waterbear
    • May 27

24. Help: some chemical causing allergic rash from hot tub 1 2 3

    By Cassiemoreira, April 29, 2020
    • 69 replies
    • 3.3k views
    • 
    • DaveP
    • May 26

25. Home Automation and the Blue Connect Water Analyser

    By snaxmuppet, April 26, 2020
    • 2 replies
    • 608 views
    • 
    • KatherineHunter
    • May 25

26. Caustic reaction

    By AllChokedUp, May 5
    • 11 replies
    • 368 views
    • 
    • waterbear
    • May 23