Checklist

Pool chemistry starter checklist

What a new pool owner needs on the shelf, and why. Buy the test kit first; it tells you what else you actually need.

Updated October 4, 2026

Test kit. Free chlorine, pH and alkalinity at minimum; stabilizer and salt if they apply. See test kits compared.
Chlorine that matches your system. Liquid, tablets or granules. Follow the label. Tablets usually add stabilizer over time.
pH up and pH down. Small measured doses, circulate, retest.
Alkalinity increaser. Keeps pH from swinging.
Safety gear. Gloves, eye protection, a dedicated clean scoop, and a dry, ventilated storage spot away from kids and pets.

Storage rule: Keep every chemical in its original labeled container, lids closed, and never store acids and chlorine together.