Shower Supply Sizing

Size water supply pipes for shower fixtures based on number of heads and flow requirements.

1=residential (2.5 GPM), 2=commercial (2.5 GPM), 3=emergency (20 GPM).
Total shower heads in shower.
Pipe length from branch.
feet

Results

Total Flow-GPM
Supply Size-inches
Pressure Loss-PSI
References: Based on UPC/IPC shower flow rates and EPA WaterSense standards