What connection is established to allow efficient drainage in a reverse osmosis system?

In a reverse osmosis (RO) system, the efficient drainage of waste water is facilitated through a drain connection. This is critical because the reverse osmosis process generates a certain amount of wastewater, which contains contaminants that have been removed from the processed water. The drain connection allows this wastewater to be disposed of properly, ensuring that the system operates effectively without clogging or compromising the quality of the filtered water.

The drain connection works by channeling the concentrated brine and contaminants that accumulate during the filtration process away from the system, often directing it to a household drainage system. By maintaining this drainage, the RO unit can continue to function optimally, providing clean drinking water while efficiently removing impurities.

The other options do not pertain specifically to the drainage requirements of the reverse osmosis process. The water supply connection refers to the input line that brings feed water into the system, while the air gap connection prevents backflow, ensuring that contaminated water does not enter the potable water supply. The power connection is necessary to operate the system, particularly for units that have pressurized pumps, but it does not play a direct role in the drainage process itself.