For most residential pools, you should test and balance your water at least once a week during swim season, and twice a week in the hottest months or after heavy use. Chlorine, pH, and alkalinity are the big three: chlorine keeps the water sanitized, pH keeps it comfortable and protects your equipment, and alkalinity keeps your pH stable. When any one drifts, the others tend to follow.
Certain events call for an extra check no matter the schedule — after a pool party, a heavy rainstorm, a heat wave, or topping off with fresh water. If testing and adjusting chemicals every week feels like a chore, that’s exactly what a regular service plan is for: we keep your water dialed in so it’s always safe, clear, and ready to swim.