Learn how to become an expert at pool care with our professional insights.
Free Chlorine is the chlorine that you usually test for in a pool. When testing for chlorine in a pool, the goal is to keep the chlorine between 3-5 parts per million in the summer, and 1-3 parts per million in the off season.
PH measures the acidity or basicness of pool water. The scale for PH is from 0-14. 7 is considered Neutral. Less than 7 means acidic. More than 7 means it is basic. Sometimes people use the word alkaline as a substitute for basic.
