Disclaimer

Our calculators give estimates. Your test kit and the product label have the last word.

Estimates, not instructions

Results depend on the numbers you enter. A wrong pool volume or test reading gives a wrong dose. Add chemicals in steps, let the water circulate, and test again before adding more.

Products vary in strength. If your product's label gives a different strength than the one you picked, follow the label.

Chemical safety

Pool chemicals can cause fires, toxic gas and burns. Never mix different chemicals, always add chemicals to water and not the other way round, wear eye and hand protection, and keep everyone out of the pool until levels are back in a safe range.

Equipment and costs

Pump, heater and cost figures are estimates based on the inputs you give. Ask a licensed professional before buying or installing equipment.