Water Chemistry
15 free calculators — every one shows its formula and a worked example.
Cyanuric AcidSunscreen for your chlorine — and why more is a costly mistake.Chemistry Order of OperationsFix the numbers in this order and each one finally holds.LSI / CSI CalculatorIs your water scaling or corrosive? The pro-grade balance index.Phosphate Remover CalculatorDose by your ppb reading — including the honest 'you don't need it' verdict.Algaecide CalculatorPolyquat doses for prevention and openings — and what algaecide can't fix.Pool Chlorine CalculatorExact liquid chlorine dose to hit your target FC level.Salt Cell % CalculatorThe salt cell % that matches your pool's daily chlorine demand.Pool Salt CalculatorPounds of salt to reach your SWG's target ppm.Pool Shock CalculatorThe right shock dose from your combined chlorine reading.CYA (Stabilizer) CalculatorStabilizer dose to stop sunlight burning off your chlorine.Pool Alkalinity CalculatorBaking soda dose to raise total alkalinity.pH Increaser CalculatorThe soda ash dose to raise pH, in safe steps you retest between.Muriatic Acid CalculatorAcid dose to bring high alkalinity and pH back down.Calcium Hardness CalculatorCalcium chloride dose to protect plaster and equipment.Pool Borate CalculatorBorax + acid doses for the 30–50 ppm borate upgrade.