Patent ID: 7828970

Claim:
A reverse osmosis (RO) system comprising: a housing that receives feed water; a faucet; a pre-filter within the housing; a plurality of membrane elements within the housing to filter the feed water, each membrane element having a permeate outlet and a concentrate outlet such that water from the membrane elements is supplied to the faucet; a sensor that monitors the condition of the water that exits from the housing; a first set of LEDs located near the faucet to indicate a condition of the system based on data obtained from the sensor, wherein first set of indicators indicates whether the system is in a good condition or a bad condition; and a second set of LEDs located near the housing to show a condition of the membrane element based on data obtained from the sensor, wherein the second set of indicators identifies which of the pre-filter and the membrane elements needs to be changed when there is a bad condition with the system.