The removable cartridge is used with a

The removable cartridge is used with a

• A. Waterless urinal
• B. Conventional urinal
• C. Flush valve
• D. Compost toilet

Answer: (A)

In waterless urinals, the drain assembly includes a removable cartridge that serves as a barrier and odor control. The cartridge sits in the trap and is saturated with deodorizing and sealing compounds, creating a surface that helps keep sewer gases from escaping while urine flows around it. Because it wears out over time, it’s designed to be easily removed and replaced during maintenance, keeping the unit odor-free and functioning without water. The other options don’t fit because conventional urinals and flush valves rely on water to flush and don’t use a replaceable odor-control cartridge in the drain, and compost toilets operate on a different waste-processing principle entirely.

In waterless urinals, the drain assembly includes a removable cartridge that serves as a barrier and odor control. The cartridge sits in the trap and is saturated with deodorizing and sealing compounds, creating a surface that helps keep sewer gases from escaping while urine flows around it. Because it wears out over time, it’s designed to be easily removed and replaced during maintenance, keeping the unit odor-free and functioning without water.

The other options don’t fit because conventional urinals and flush valves rely on water to flush and don’t use a replaceable odor-control cartridge in the drain, and compost toilets operate on a different waste-processing principle entirely.