Rain Shower Flow Rate

For a typical user the shower flow consists of about 70 percent hot water.

Rain shower flow rate. Since 1992 a maximum of 2 5 gpm is the federally mandated flow rate for new shower heads. Depending on where you live retailers may only sell shower heads with a maximum of 2 5 gpm 2 0 gpm or 1 8 gpm flow rate. When it comes to shower heads you ll typically find 2 5 gpm 2 0 gpm 1 8 gpm and 1 5 gpm.

When shopping for shower heads be sure to compare apples to apples a 2 0 gpm shower head simply will not reproduce the flow rate of your old 3 5 gpm shower head. This means no more than 2 5 gallons of water should flow out each minute. Water flow regulations save billions of gallons of water.

The maximum flow rate for showerheads is 2 5 gpm. The new unit will quickly pay for itself in water savings and more significantly in reduced water heating costs. Since 1994 federal regulations have limited shower head manufacturers to a maximum flow rate of 2 5 gallons per minute gpm.

Also known as flow rate gpm is a measure of how many gallons of water flow out of your shower head each minute. The gpm flow rate for shower heads has decreased over time. California has enacted its own legislation limiting the flow rate to 2 0 which will be reduced even further to 1 8 gpm in july 2018.

It is a much drier state than most with very little rainfall. If your measured flow rate is any higher replace the showerhead.