Test the pool water with a reliable pH test kit
Target a pH level of 7.2 to 7.6
Use muriatic acid or dry acid to lower pH
Follow the product label for the correct dosage
Wear protective gloves and eyewear
Add acid to water, never water to acid
Pour the acid slowly into the deep end or in front of a return jet
Keep the pump running while adding the acid
Let the water circulate for several hours
Retest the pH after circulation
Repeat with small adjustments if needed
Check total alkalinity if pH keeps rising
Avoid lowering pH too quickly
Keep swimmers out of the pool until chemicals are fully mixed and levels are safe