Fictional worked example

Combine measured losses from two fixtures

A resident measures 0.08 and 0.12 L/min independently at two fixtures running continuously. They compare the combined loss with the remaining flow after fixing the higher-rate fixture.

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Inputs and calculation

Both fixtures over ten days
Tool inputValue
CurrencyUSD
Volume or billing unitm³
Flow (L/min)0.2
Days or equivalent sessions10
Price per billing unit (USD)4

0.2 L/min × 1,440 min/day × 10 days = 2880 L. Divide by 1,000 for m³, then multiply by 4 for USD 11.52.

Tool result · USD 11.52

Only the 0.08 L/min fixture
Tool inputValue
CurrencyUSD
Volume or billing unitm³
Flow (L/min)0.08
Days or equivalent sessions10
Price per billing unit (USD)4

0.08 L/min × 1,440 min/day × 10 days = 1152 L. Divide by 1,000 for m³, then multiply by 4 for USD 4.61.

Tool result · USD 4.61

What the comparison shows

Repairing the higher-flow fixture first removes 1,728 L from this ten-day model. The remaining fixture still contributes measurable loss.

Assumptions and limits

Add rates only for overlapping durations. A whole-home measurement may already include both leaks.

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