How To Lower Alkalinity In Hot Tub Naturally. Using vinegar to clean a hot tub or spa is a safe and effective method. If the alkalinity is not lowered…
For that add 30 gm, 1 capful of sun boom to the water. Be sure to buy chemicals meant for hot tub use and follow the directions carefully. In order to correct this problem, you’ll need to add an acid to the hot tub.
If you want to use a household product you can try vinegar.
However, you still need to lower the cyanuric acid level to keep your chlorine working as it should. Keeping the ph of your hot tub at the appropriate level is a necessary part of spa maintenance. If the alkalinity is not lowered… You should aim to get your hot tubs ph level in the range of 7.2 and 7.8 as anything higher or lower can cause issues for your hot tub and bathers.