Pool, Spa & Water Treatment Chemistry worked example

Chlorine Tablet Feed Rate with pool volume basis of 1 10k gal: a worked example

Suppose pool volume basis falls to 1 10k gal. This page works the full calculation at that level so you can see exactly which result moves and by how much. Estimate chlorine tablet feed rate from pool volume, daily chlorine demand, tablet yield, and feeder efficiency.

The inputs for this scenario

  • Pool volume basis: 1 10k gal (the input this scenario stresses; the baseline uses 2)
  • Daily free-chlorine demand: 2 ppm / day (held at the documented default)
  • Tablet demand factor: 0.56 tablets per ppm per 10k gal (held at the documented default)
  • Feeder efficiency adjustment: 1.18 x (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Tablet feed rate = pool volume basis x daily demand x tablet demand factor x feeder efficiency adjustment.
  • Estimated tablet feed rate works out to 1.32 tablets / day at these inputs, and this is the headline figure for the scenario.
  • Base product works out to 1.12 value at these inputs.
  • Multiplier works out to 1.18 x at these inputs.
  • Factor A x B works out to 2 value at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where pool volume basis sits at 2 10k gal and the headline result is 2.64 tablets / day, this scenario comes in 50% below the baseline at 1.32 tablets / day.
  • It estimates the number of chlorine tablets per day needed to meet your pool's daily chlorine demand, adjusted for feeder efficiency. When the numbers land here, the stressed input is the lever to work; the walkthrough above shows exactly how much each output recovers as it climbs back toward the baseline.

Results at a glance

  • Estimated tablet feed rate: 1.32 tablets / day (headline result)
  • Base product: 1.12 value
  • Multiplier: 1.18 x
  • Factor A x B: 2 value

Run it with your numbers

  • To rerun this with your own numbers, open the live Chlorine Tablet Feed Rate calculator, set pool volume basis to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.