9
1. Turn OFF cold water supply to RO system. Turn OFF tank’s ball-valve. Lift up RO faucet lever
briefly to relief the built-up pressure inside the RO system. This will make opening the housings
easier.
2. Open housing: Have the RO standing upright. Slip the plastic wrench onto the #1 housing.
Looking down from a top view, you should open the housing turning clockwise. If necessary,
lay RO down on the floor to get a better leverage. If the housing is too tight, use a hammer
and tap on the wrench handle to help turn the wrench.
3. Discard 3 used filters, wash housings with mild soap, rinse off. Put 3 new filters into their
respective housings: sediment filter in stage-1, carbon block filters in stages 2 & 3.
4. Close up the housings. Make sure each housing has a black O-ring in the thread groves. Use
wrench to tighten each housing.
5. Remember: Turn ON the cold water supply and OPEN the tank valve after finished changing
filters!
6.
Check for leaks!
CHANGING THE PRE-FILTERS
1. Shut off the feed water to the system by turning the saddle valve on the water supply adapter
clockwise until it stops.
2. Close the storage tank ball valve by turning the handle perpendicular to the valve body.
3. Open the drinking water faucet relive pressure.
4. Allow 3-5 minutes for pressure in the system to drop.
5. Disconnect the tubing from the membrane cap by pushing in and holding down the end
collar ring surrounding the quick connect elbow fitting while gently pulling back on the tubing.
6. Remove the membrane.
7. Discard the used membrane.
8. Insert the new membrane making sure it is properly seated in housing clip.
9. Reconnect the removed tubing by pushing it into the elbow fitting in the housing cap.
10. Gently pull back on the tubing to insure a leak free connection.
CHANGING THE MEMBRANE
CAUTION:
ANY REPLACEMENT FILTERS OR MEMBRANE NOT RECOMMENDED BY THE
FACTORY CAN CAUSE SEVERE DAMAGE TO THE SYSTEM AND VOIDS ALL WARRANTIES.
Turn on the feed water to the system by turning the saddle valve at the water supply adapter
counter - clockwise.Turn the storage tank ball valve handle parallel to the valve body.
VGRO Owners Manual
© 2017 Water Engineering Corporation