Also Known As: Sodium Carbonate
When tests show that the water is too hard, soda ash is added to raise pH. In addition, it can neutralize chlorine, making the water more comfortable for swimmers.
A pools pH should be between 7.2 and 7.6. When the pH is too low, the water may be cloudy, as well as stain pool surfaces and swimming suits. In addition, hard water can cause red eyes and even hair loss. On the other hand, when pH is too high, chlorine can be less effective, scale can form and the filtration system may become clogged.
When pool waters pH is too low, add 16 ounces of soda ash for every 10,000 gallons of water. First dissolve the soda ash in a bucket of water. Then add the solution to the pool using a chemical feeder. The pool should be remain closed for a day after soda ash is added. Sodium carbonate should be handled carefully and stored according to the manufacturers instructions.
Soda ash is not the same as sodium bicarbonate or simple baking soda. While soda ash is more of a base than an acid, while sodium bicarbonate is closer to the acid end of the pH scale.