When should the RO prefilter be changed according to delta pressure?

The appropriate time to change the RO (reverse osmosis) prefilter based on delta pressure is 10 psi. Delta pressure refers to the difference in pressure across the filter, which increases as the filter becomes clogged with particulates and contaminants. When the delta pressure reaches this threshold, it indicates that the filter is losing its effectiveness and may be creating excessive strain on the RO system.

Changing the prefilter at 10 psi helps maintain optimal performance of the RO system by ensuring that water can flow freely without creating undue pressure build-up. This pressure change signifies a decrease in the filter's ability to perform its function effectively, and addressing it at this point can prevent larger issues such as membrane fouling or system failures.

Monitoring differential pressure is critical in the maintenance of water treatment systems, as it directly correlates with the health of the prefilter and, subsequently, the overall efficiency of the reverse osmosis system. Maintaining a schedule or protocol based on this measurement can lead to better management of water quality and system longevity.