Customer Questions and Answers for Water Filter Bypass by Lg

Susan, the filter should be able to be removed and the unit work appropriately. Both filters being in place can certainly cause the water pressure to be too low for the valve to open properly. The reverse osmosis system is going to drop the pressure by a minimum of 5 PSI and the filter would drop it another 3 to 5 PSI. As there is 30PSI going to the reverse osmosis system, the pressure drop would bring the PSI below the minimum requirements of the valve. It would be recommended that the refrigerator water supply be installed before the reverse osmosis system to allow for the valves to operate as properly as possible. The manufacturer recommends a minimum of 40PSI going to a reverse osmosis system that is installed before the valve water supply.