How To Remove A Reverse Osmosis Filtration System (RO) From A Kitchen Sink

After disconnecting a reverse osmosis drinking water system the system is at risk of contamination at every open fitting that a tube has been disconnected from.  These openings allow bacteria to enter the system and thrive in the wet tubes, housings and filters.  If the RO system is not reinstalled within 2 or 3 days it should be sanitized using the complete sanitation routine including changing the filters and RO membrane.    

To disconnect a reverse osmosis drinking water system from under a kitchen sink in four steps:

1. Disconnect the RO membrane housing drain line tube from the drain saddle and use a 1/4" plug inserted through a 1/4" nut to screw on to the drain saddle to cap off the drain hole.
2. Remove the cold water flex line from the RO feed water supple valve. Remove the feed water supply valve from the cold water angle stop. Reconnect the cold water flex line to the cold water angle stop.
3. Disconnect the ice line from the RO faucet tube and leave the disconnected ice line under the sink for possible future use.
4. Remove the RO faucet and cover the remaining hole in the sink with a 2" faucet hole cover sealed with plumbers putty.

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