Backwash Water Loss Calculator

Calculate water lost during filter backwash cycles.

Enter the filter type (1=sand, 2=de) value for this calculation.
Dimensional measurement of the item.
sq ft
Proportional relationship between two values.
minutes
The speed or frequency at which something occurs.
GPM

Results

Water Lost Per Backwash:
Value expressed as a rate (per unit).
-gallons
Monthly Loss (4x):
Calculated monthly loss (4x) based on your inputs.
-gallons
Reference: Industry Standards.