## What is the difference between Fu and GPM?

Fixture unit is a rate, while gallons is a quantity. One could dump the 6000 gallons over an entire day, and it would be 6000/24/60 = 4 gpm = 2 fixture units. Or it could be dumped in one minute then the rate would be 6000 gpm = 12,000 FU.

## How do I convert water supply fixture units to GPM?

How do I convert Water Supply Fixture Units to GPM? The same way you would covert apples to oranges. Fixture unit is a rate, while gallons is a quantity. One could dump the 6000 gallons over an entire day, and it would be 6000/24/60 = 4 gpm = 2 fixture units. Or it could be dumped in one minute then the rate would be 6000 gpm = 12,000 FU.

## How much GPM does 1 DFU =?

I have received DFUs for each building from the Architect. I am having hard time calculating gpm for each building from the given DFUs. When I look up the plumbing code, I see 1 DFU = 7.5 gpm and this seems very excessive. I have also seen 1 DFU = 1 gpm or 0.5 gpm in my online research.

## How do you convert DFU to GPM in plumbing?

How to Convert DFU to GPM Find your state’s Uniform Plumbing Code (UPC). In the UPC, look for the drainage fixture unit rating for your device or system. To get the gallons per minute of flow for your device or system, divide the drainage fixture unit rating by two. How many GPM does a fixture unit have in terms of this?