How To Raise The pH Level In Your Swimming Pool

Raising The pH Level to 7.4 Using Sodium Carbonate (soda ash)

Pool Water pH	Gallons of Water in the Pool
Pool Water pH	10,000	15,000	20,000	25,000	30,000	35,000	40,000	45,000	50,000
6.6	1.5 lbs	2.25 lbs	3.0 lbs	3.75 lbs	4.5 lbs	5.25 lbs	6.0 lbs	6.75 lbs	7.5 lbs
6.8	1.25 lbs	1.75 lbs	2.5 lbs	3.0 lbs	3.5 lbs	4.25 lbs	5.0 lbs	5.5 lbs	6.0 lbs
7.0	1.0 lbs	1.5 lbs	2.0 lbs	2.25 lbs	2.75 lbs	3.25 lbs	3.75 lbs	4.25 lbs	4.75 lbs
7.2	.75 lbs	1.0 lbs	1.25 lbs	1.75 lbs	2.0 lbs	2.25 lbs	2.75 lbs	3.0 lbs	3.25 lbs

HOW TO ADD: Add soda ash to a large amount of water and pour slowly around the pool. Retest after one hour.

WARNING: Always add chemical to water. Never add water to chemical. Do not mix with any other chemicals. Do not add more than one pound per 10,000 gallons at a time because soda ash is very concentrated and can cloud the pool water. All additions of chemicals are approximate and depend on local conditions.