Installation Guide
12
Start-up Instructions:
6 Month System Maintenance:
NOTE: If you have connected your RO system to a refrigerator/ice maker, make sure the ice
maker is off (do not allow water to flow to the ice maker until flush is complete and the
tank has been allowed to fill completely. Connection from the RO to the icemaker
system should have an inline valve installed before the icemaker so it can easily be
closed to prevent water flowing to the ice maker during start up and periodic
maintenance. Your RO tank must be allowed to fill up fully for the ice maker system to
work properly.
1. Turn Inlet Valve and Storage Tank Ball Valve both in open position.
2. Ensure RO faucet is closed.
3. Slowly open the cold water supply valve that you closed at the beginning of this installation.
4. Water pressure will start to build in the RO system in about 2 hours. Carefully inspect all
fittings and connections. Check for leaks and fix if any are found.
5. Open RO faucet and let water flow through the system for a 24 hour period. Water will flow
heavily until the Storage Tank becomes empty, and then it will be a slow drip for the
balance of 24 hours.
6. Close RO faucet after 24 hour purge is complete.
7. RO system is ready for use.
NOTE: you will not have filtered water immediately. It will take 1-2 hours to completely fill the storage
tank to create liberal flow from the RO faucet.
Model # Stage 1 Stage 2 Stage 3 Stage 4
VRO-3U
5 micron Carbon
Block
Filter Part #
VRFU-CTO
RO Membrane
Part # VRFU-RO
5 micron
Carbon Block
Filter Part #
VRFU-CTO
n/a
VRO-4U
5 micron Sediment
Filter Part #
VRFU-PP
5 micron Carbon
Block
Filter Part #
VRFU-CTO
RO
Membrane
Part #
VRFU-RO
Inline Carbon
Filter
Part # VRF-T33
Depending on which model was purchased the chart below will assist with replacement of
filter cartridges. The replacement filter can be obtained online at www.ghpgroupinc.com or at
the retail store where the system was purchased.
The prefilter and postfilter have a life expectancy between 6 to 12 months, depending on
the incoming water conditions and the amount of the water the system has used. You must
periodically replace the filters. This will protect the RO membrane from being destroyed by
Chlorine and also prevent the filters from plugging with sediment.