Pool calculators and templates
19 tools, all free, all running in your browser. Nothing you type is stored or sent anywhere.
Water chemistry
8 toolsPool volume calculator
Gallons from shape, depth and dimensions — the number every dose depends on.
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Chlorine dose calculator
Ounces or pounds of liquid, cal-hypo, dichlor or trichlor to hit your target ppm.
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Pool salt calculator
Bags of salt to reach the cell's target, and the drain-and-refill if you overshot.
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Alkalinity calculator
Sodium bicarbonate up, acid plus aeration down, with the pH drift shown.
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pH and acid demand calculator
Muriatic acid, dry acid or soda ash dose from your pH and total alkalinity.
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Cyanuric acid calculator
Stabiliser to add, or the dilution needed to bring a high CYA back into band.
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Shock dose calculator
Breakpoint chlorination from combined chlorine, product by product.
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Saturation index calculator
One balance number from pH, temperature, hardness, alkalinity, CYA and TDS, plus the reading to move.
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Equipment & repair
4 toolsPump size calculator
Required flow from volume and turnover, then the head loss your plumbing adds.
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Heater size calculator
BTU from surface area, temperature rise and how exposed the pool is.
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Turnover and run-time calculator
Turnover hours, filter area check and the daily run time that follows.
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Heating cost calculator
Monthly and seasonal cost of gas, heat pump or electric resistance heat on your own energy prices.
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Route & pricing
4 toolsService pricing calculator
Price a weekly stop from drive time, chemicals, labour rate and target margin.
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Route value calculator
What a route is worth: monthly gross, churn, density and the multiple.
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Service invoice template
A printable invoice with chemical line items and a copy button.
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Service contract template
A weekly-service agreement with a scope and exclusions table.
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