Situational · 8 steps · August 2026

Pool Party Prep & Recovery

A heavy bather load hammers your chemistry — sweat, sunscreen, and oils eat chlorine fast. Balance and shock ahead of time, keep the filter running through it, and reset the water afterward.

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Day before

Test and fully balance the water the day before — you want pH, alkalinity, and chlorine all on target before the crowd arrives. Water balance calculator
Shock the pool the night before and let free chlorine drift back to a safe swimming level before anyone gets in. Never let people swim at shock-level chlorine — wait until it falls back into the normal range. Shock calculator
Clean ahead: skim, brush, vacuum, and empty the baskets so the water starts clear and the filter starts fresh.

Just before

Check free chlorine again on the day — a warm, sunny pool can burn through it before the first guest arrives. Chlorine calculator
Confirm the pump and filter are running, and leave them running through the whole event.

After the party

Skim and empty the baskets — sunscreen, hair, and debris load up fast under a heavy bather load.
Shock again once everyone is out: sweat, oils, and sunscreen consume chlorine and can cloud the water. Shock calculator
Re-test and rebalance pH and alkalinity, which a crowd and lots of splashing tend to push around. Alkalinity calculator

Exact amounts for your pool

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