Every dose depends on pool gallons. Enter the shape, size and depths to get yours.
How it works
Rectangle area is length × width. Round and oval use pi. Area times average depth times 7.48 gives gallons.
Before you order
- Measure at the real water line.
- Stepped or sloped floors need a best-guess average depth.
- Note the number where you keep your pool chemicals.
Common questions
Should I use the deepest point?
Use the average depth. Using the deepest point overstates the gallons and overdoses chemicals.
How do I handle a kidney shape?
Split it into simple shapes or measure gallons with a flow meter while filling.