In general, chlorine and other chemicals should be added directly to the pool water with the filter running. When handling and administering pool chemicals, read the instructions carefully and follow the manufacturer’s directions.
ALWAYS add chemicals to water, NOT water to chemicals
NEVER mix chemicals – add them to the pool separately.
NEVER add chlorine products in your skimmer.
Stabilizer – Chemically, a stabilizer (also called conditioner) is Cyan Uric acid. It slows down the degradation of chlorine in the water by sunlight. Too much does not slow down chlorine activity or effectiveness. Adding stabilizer will also prevent “chlorine burn off” which is the deterioration of chlorine from extreme heat. Minimum level is 10 ppm. The ideal level of stabilizer is 25 ppm.
pH Importance – A low pH indicates acidic water and a high pH indicates alkaline (basic) water. pH should always be adjusted to the proper range before the addition of chlorine or other chemicals otherwise it will seriously affect their performance.