Hot Tub Water Chemistry

3,536 topics in this forum

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

   By Itchy and Scratchy, February 10, 2011
   • 31 replies
   • 88.5k views
   • 
   • RDspaguy
   • February 10

3. Decontamination 1 2 3 4 5

   By Nitro, March 30, 2009
   • 116 replies
   • 102.2k views
   • 
   • waterbear
   • January 24

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

   By Nitro, December 12, 2009
   • 78 replies
   • 76.8k views
   • 
   • nmiller0113
   • January 4

5. Some truths about pH and TA

   By waterbear, November 9, 2020
   • 0 replies
   • 909 views
   • 
   • waterbear
   • November 9, 2020

6. Bromine use in spas

   By RDspaguy, July 31, 2020
   • 1 reply
   • 1.4k views
   • 
   • dlleno
   • September 22, 2020

7. Chlorine Demand 1 2

   By Nitro, February 11, 2009
   • 28 replies
   • 44.4k views
   • 
   • _Samuel_
   • April 7, 2020

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

   By Nitro, November 10, 2008
   • 170 replies
   • 185.3k views
   • 
   • Matt16060936
   • September 15, 2019

9. Lowering Total Alkalinity 1 2 3 4

   By Nitro, April 3, 2009
   • 87 replies
   • 176.4k views
   • 
   • waterbear
   • May 20, 2019

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

    By waterbear, March 31, 2012
    • 0 replies
    • 13.4k views
    • 
    • waterbear
    • March 31, 2012

11. Bromine that says "27% available Chlorine"... frustrated!

    By McNaughty2, January 27
    • 9 replies
    • 143 views
    • 
    • McNaughty2
    • 6 hours ago

12. Bleach In Hot Tubs 1 2

    By chem geek, January 12, 2008
    • 33 replies
    • 77.1k views
    • 
    • Apollothesun
    • 12 hours ago

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

    By Cassiemoreira, April 29, 2020
    • 55 replies
    • 1.9k views
    • 
    • Apollothesun
    • 13 hours ago

14. No chlorine reading with ozone system

    By SpaVic, February 16
    • 10 replies
    • 111 views
    • 
    • RDspaguy
    • Tuesday at 07:06 AM

15. Taylor K-2006 - ph test. Accurate? Interferences?

    By samwise801, Monday at 08:22 PM
    • 0 replies
    • 30 views
    • 
    • samwise801
    • Monday at 08:22 PM

16. Swim Spa water issue - biguanide system being used.

    By Shalena, February 10
    • 6 replies
    • 97 views
    • 
    • waterbear
    • Monday at 08:11 AM

17. Can I upload a video clip to support my question posted a few mints ago?

    By Masood, February 14
    • 10 replies
    • 105 views
    • 
    • waterbear
    • Monday at 08:09 AM

18. DIY spa filter cleaner

    By Brotha Hayz, January 18
    • 3 replies
    • 131 views
    • 
    • RDspaguy
    • Saturday at 04:52 PM

19. Help! New hot tub owners struggling to maintain bromine levels and pH

    By dobeleye, Friday at 06:04 PM
    • 1 reply
    • 51 views
    • 
    • RDspaguy
    • Saturday at 12:57 AM

20. HIgh Alkalinity, Low ph

    By Yodaa2, Friday at 02:05 PM
    • 1 reply
    • 40 views
    • 
    • RDspaguy
    • Friday at 04:58 PM

21. Organic Chloramines

    By rmcderm313, February 18
    • 0 replies
    • 36 views
    • 
    • rmcderm313
    • February 18

22. Ph normal - alkalinity low

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

23. Build up under coping

    By Nettie, February 16
    • 2 replies
    • 69 views
    • 
    • RDspaguy
    • February 16

24. Filter Clogged With Milky White Substance

    By driver_8, May 6, 2007
    • 16 replies
    • 12.4k views
    • 
    • Masood
    • February 16

25. Allergic To Hot Tub?

    By BitsnBear, January 17, 2010
    • 10 replies
    • 5.8k views
    • 
    • Gary I
    • February 15

26. Help with CC going up, please?

    By DougA, February 12
    • 1 reply
    • 80 views
    • 
    • Apollothesun
    • February 14