What Does Gpm Stand for in Plumbing

GPM means Gallons Per Minute. Also known as “flow rate”, GPM is a measure of how many gallons of water flow out of your shower head each minute. Since 1992, a maximum of 2.5 GPM is the federally mandated flow rate for new shower heads.

What is a good gpm flow rate?

According to federal regulations, all kitchen and bathroom faucets should have a maximum flow rate of 2.2 gallons per minute (gpm) at 60 psi (pounds per square inch) of pressure; in California and Georgia, maximum flow rates are further restricted to 2.0 gpm (California will eventually be restricted to 1.8 gpm).

Is 2.0 gpm good water pressure?

In some places, 2.0 GPM is the maximum allowable flow. The reduced flow rate is also preferable when a low water supply is a concern, such as in RVs or when you’re using well water. Shower heads with even lower flow rates are also available under the titles of “Eco Performance” or “EP” shower heads.

Robert Thorne

Robert Thorne

Automotive & Future Transportation Editor

Robert Thorne covers electric vehicle innovations, autonomous driving systems, global mobility trends, and automotive engineering developments.

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