What is a common requirement for showerheads in terms of flow rate?

The flow rate requirement for showerheads is critically important for both water conservation and efficiency. The established standard for residential showerheads is that they must not exceed a flow rate of 2.5 gallons per minute (GPM). This regulation helps to balance adequate water pressure and volume for a satisfying shower experience while minimizing water waste. Such standards are enforced by the U.S. Environmental Protection Agency (EPA) as part of water conservation efforts, aiming to reduce overall water usage in households.

While lower flow rates may be applicable in specific situations or for specialized fixtures, the widely accepted maximum of 2.5 GPM serves as the benchmark for most residential installations. Understanding these standards is essential for compliance with plumbing codes and for promoting sustainable water use in residential settings.