Guide
Evaporation and Pool Covers
Surface area times inches per day drives gallons lost; covers cut loss by about 90 percent.
Read guideGuides
Worked examples for pool care.
Parameter tables plus hand calculations you can reproduce: dosing, balance, heating, and costs.
Guide
Pool Build Budget Guide
Budget an inground build as pool area times local build rate plus deck, fence, and heater.
Read guideGuide
How to Measure Pool Volume
Measure length, width, and average depth, multiply for cubic feet, then multiply by 7.48 for gallons.
Read guideGuide
Pool Chlorine Basics
Test free chlorine daily and keep 1-3 ppm for pools, 3-5 ppm for spas.
Read guideGuide
Salt System Care
Salt systems need 3000-3400 ppm. Test, add pool salt, brush, and retest after 24 hours.
Read guideGuide
Water Balance Order
Balance in order: alkalinity 80-120 ppm, then pH 7.4-7.6, then calcium 200-400 ppm.
Read guideGuide
Pool Pump Runtime Guide
Size run time by turnover: gallons divided by pump GPM times 60 gives hours per turnover.
Read guideGuide
Pool Heating Cost Guide
Gallons times 8.34 times degrees of rise gives BTU needed; convert to therms and dollars.
Read guide