How to Replace AMPAC Filters and Reverse Osmosis Membranes
Replacing The Pre & Post Filters:
- Shut off the system by turning off the water supply.
- Turn off the holding tank valve.
- Open the spigot to release the pressure from the system.
- Place towel under the unit for water spills.
- Use a filter wrench or by hand to open the filter housing, unscrew
it from right to left.
- Throw away the used filter, and clean the inside of the housing
by rinsing or scrubbing.
- Watch for the black "0" ring inside the filter housing
(DONT LOSE IT!).
- Place the new filter inside the filter housing.
- Place the "O" ring in the housing grove (MAKE SURE IT
IS IN PLACE)
- Put some Vaseline or silicon-based lubricant on the side of the
- Use a filter wrench or by hand to screw the housing back into place
by turning it from left to right (Dont lay down the unit while
screw it in, the unit should be stand upright to prevent the O-ring
- Repeat the above steps for other filters.
- After all housings are tight, turn on the water supply and storage
- Observe for any leaks, if there is leak, tighten the housing or
re-aligning the O-ring.
- If you are changing a carbon filter or membrane, you must drain
the first tank of water after restart the system.
Replacing The Inline Polishing Filter:
Replacing inline-carbon filter, the flow direction
indicated on the filter should be the same as the old filter. The Inline
Replacement Filters From Ampac Use John Guest "Quick-Connect"
To Disconnect push in collet squarely
against the face of fitting. With the collet held in this
position, the tube can be removed.
Push the tube into the fitting, to
the tube stop, the collet (gripper) hold the tube in position.
Pull the tube lightly to check it is secure in position.
Replacing The Reverse Osmosis Membrane:
- Follow "Change Filters Procedures" above steps 1 to 3
- Free the membrane from the clips.
- Use a 5/8" wrench to remove the tubing from the membrane vessel
(the inlet side of the membrane vessel, or the side with the membrane
- Unscrew the membrane vessel cap off (counter-clockwise)
- Use pliers to pull the membrane out of the membrane vessel, and
discard the used membrane
- Insert the new membrane into the membrane vessel (THE SIDE WITH
DOUBLEBLACK O-RING SHOULD GO IN FIRST)
- Push the membrane all the way in
- Put some Vaseline or silicon based lubricant to the side of the
- Screw the membrane vessel cap back (clockwise)
- Connect the tubing to its elbow fitting
- Turn on the water supply and tank valve to restart the system
- Observe for leaks, if there is leak, tighten the cap.
Wait 2 to 3 hours for the tank to be filled then you must drain the
first tank of water by opening up the faucet to flush the system