Industrial Laundry, Uniform & Textile Rental Operations worked example

Water Use Per Pound at 72% washroom water allocation: a worked example

Suppose washroom water allocation falls to 72%. This page works the full calculation at that level so you can see exactly which result moves and by how much. Calculate washroom gallons per processed pound using metered water, processed pounds, and any allocation for shared plant utilities.

The inputs for this scenario

  • Washroom water used: 92,000 gal (held at the documented default)
  • Processed laundry weight: 46,000 lb (held at the documented default)
  • Washroom water allocation: 72 % (the input this scenario stresses; the baseline uses 100)

Working through the calculation

  • The calculation starts from the formula this tool documents: Base water use per pound = washroom water used รท processed laundry weight.
  • Allocated water use per pound works out to 1.44 gal / lb at these inputs, and this is the headline figure for the scenario.
  • Base water use per pound works out to 2 gal / lb at these inputs.
  • Washroom water allocation works out to 72 % at these inputs.
  • Processed laundry weight works out to 46,000 lb at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where washroom water allocation sits at 100% and the headline result is 2 gal / lb, this scenario comes in 28% below the baseline at 1.44 gal / lb.
  • It computes gallons of water consumed per pound of laundry processed, optionally narrowed to the washroom's allocated share of a shared meter. 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

  • Allocated water use per pound: 1.44 gal / lb (headline result)
  • Base water use per pound: 2 gal / lb
  • Washroom water allocation: 72 %
  • Processed laundry weight: 46,000 lb

Run it with your numbers

  • To rerun this with your own numbers, open the live Water Use Per Pound calculator, set washroom water allocation to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.