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Pool Tools & Calculators
Free tools to size, balance, troubleshoot, and optimize your pool equipment.
Water Balance Calculator
Check core pool chemistry and receive balance warnings and adjustment guidance.
LSI Calculator
Calculate Langelier Saturation Index and see if water is corrosive, balanced, or scaling.
Salinity Calculator
Calculate how much salt is needed to reach your target salt level.
Chlorine Dose Calculator
Estimate liquid, cal hypo, dichlor, or trichlor required to raise free chlorine.
Stabilizer / CYA Calculator
Estimate stabilizer needed to raise cyanuric acid.
Calcium Hardness Calculator
Estimate calcium increaser needed for pool water balance.
Alkalinity Calculator
Estimate alkalinity increaser needed to reach a target range.
pH Raise / Lower Calculator
Estimate pH adjustment amount and retesting guidance.
Water Replacement Calculator
Estimate drain/refill percentage to lower salt, CYA, calcium, or TDS.
Pool Volume Calculator
Estimate gallons for rectangle, oval, round, kidney, and freeform pools.
Spa Volume Calculator
Estimate spa water volume from dimensions.
Heater Sizing Calculator
Estimate heater or heat pump capacity for a desired temperature rise.
Pool Heating Time Calculator
Estimate how long a heater will take to raise pool temperature.
Heat Pump vs Gas Heater Cost Calculator
Compare estimated daily operating cost for heat pumps and gas heaters.
BTU / kW Converter
Convert heater capacity between BTU/hr and kW.
Freeze Protection Calculator
Estimate when freeze protection should run and what to inspect.
Turnover Rate Calculator
Calculate pool turnover time from pool volume and flow rate.
Pipe Velocity Calculator
Check suction or return pipe velocity and flag high-flow conditions.
Head Loss / Friction Loss Calculator
Estimate friction loss from pipe size, length, fittings, and flow.
Chlorine Production Calculator
Estimate daily chlorine production from grams/hour and runtime.
Wire Gauge / Voltage Drop Calculator
Estimate voltage drop for pool equipment and lighting circuits.