How To Reduce Alkalinity In Hot Tub Water. Both muriatic acid and sodium bisulfate will do the job, and it’s up to you to weigh the pros and cons of each. Give it some time for the water to circulate the chemical throughout the tub.
Once dissolved, pour the solution into the hot tub. Any reading below 7.2 means your water is acidic. To lower the ta 30 ppm and 1.06 lbs.
Keep retesting the water to ensure the water is balanced.
The correct level of alkalinity is. These two go hand in hand and have direct impact on each other. To increase the ph levels in your hot tub, add a ph increaser to bring the levels back to normal. The amount of sodium bicarbonate you will need to add to your tub will differ based on the size of your tub.