A filter has a flow of 2,000 gpm and an area of 1,000 ft². What is the loading rate in gpm/ft²?

A filter has a flow of 2,000 gpm and an area of 1,000 ft². What is the loading rate in gpm/ft²?

• A. 2000
• B. 0.5
• C. 2.0
• D. 1000

Answer: (C)

Loading rate is the amount of water passing through a filter per unit area. To find it, divide the flow by the filter area. Here, 2,000 gpm divided by 1,000 ft² equals 2 gpm/ft². That value matches the option listing 2.0 gpm/ft², so it’s the correct choice. This shows why the rate is 2.0: the flow is scaled against the filter area. Remember, increasing the flow or reducing the area raises the loading rate, while increasing the area lowers it.

Loading rate is the amount of water passing through a filter per unit area. To find it, divide the flow by the filter area. Here, 2,000 gpm divided by 1,000 ft² equals 2 gpm/ft². That value matches the option listing 2.0 gpm/ft², so it’s the correct choice. This shows why the rate is 2.0: the flow is scaled against the filter area. Remember, increasing the flow or reducing the area raises the loading rate, while increasing the area lowers it.