How many 40 lb bags of salt do I need?
Divide the estimated pounds of salt by 40. Round up only after considering whether you want to add salt gradually and retest.
FAQ
Pool salt calculator FAQ
Does salt purity matter?
Yes. Lower purity salt requires more product to achieve the same salinity increase. The MVP supports 95%, 99%, and 99.8% inputs.
Can rain lower pool salinity?
Heavy rain can dilute pool water if it adds fresh water and causes overflow or draining. Evaporation alone does not remove salt.
Should I trust a generic ppm target?
Use equipment manuals first. Generic targets are useful estimates, but salt chlorine generators vary by model and manufacturer.