Operation, Installation, Maintenance – Watts PWDWRVWG2 User Manual
Page 3: Filter cartridge replacement procedure, Winter shut-down procedures

3
Operation
With sufficient pressure, operation of this system is completely auto-
matic . Dependable operation involves only monitoring system pres-
sure differential, periodic filter changes, and service documentation .
Installation
* Please note: All cartridge filters are preinstalled in the
housings at the factory.
1 . Turn off all equipment to be fed by the system, locate the water
supply shutoff valve to your home or RV and turn it off .
2 . Thread the inlet and outlet fittings into the inlet and outlet of the
system . NOTE: DO NOT OVER TIGHTEN THESE FITTINGS
INTO THE FILTER HEADS.
3. Anchor the system on a wall stud or suitable mounting material
spanning wall studs . System must be vertical, upright and level .
4 . Run a suitable line of at least
1
⁄
2
" in diameter from the tap water
source to the inlet on the left side of the system . NOTE: DO
NOT OVERTIGHTEN CONNECTION FITTING INTO SYSTEM.
6. Select the appropriate size tubing for the equipment being fed
and connect it to the outlet fitting of the system . NOTE: DO
NOT OVERTIGHTEN CONNECTION FITTING INTO SYSTEM.
7. Once all inlet and outlet piping has been completed check and
make sure all filter housings are tight . Slowly open the inlet valve
to house or RV and allow the system to reach operating pres-
sure, and check for leaks .
8 . Record the start up date for future filter replacements .
Note: Overtightening components can damage the system
causing water damage and/or system failure.
Maintenance
Routine maintenance of this system involves periodic filter changes .
Cartridges should be changed at least every 6 months or sooner
depending on incoming water quality .
Filter Cartridge Replacement Procedure
IMPORTANT: Determine whether all equipment connected to
the system must be turned off prior to shutting off water supply
from filters.
1 . If required, turn off downstream equipment .
2 . Turn OFF water supply to the system and open faucet to relieve
pressure .
3 . Starting with the housing on the left, unscrew housing by turning
counterclockwise . Remove and discard spent filter and drain
water that remains in the bowl . The sediment filter has a cloth
like appearance . It must be in the 1st housing on the left where
water inlet connects . Continue on to the 2nd housing, the Car-
bon Block filter has a mesh covering and a white rubber gasket
on each end .
4 . Clean inside of housing sump with warm water . If desired, disin-
fect housing using a teaspoon of household bleach. Add to filter
bowl and fill with water . Let stand 5 minutes and then discard
and rinse .
5 . Insert new cartridges into filter housings, making sure filters are
installed from left to right, sediment filter then carbon block filter .
Do not overtighten filter housing, overtightening may damage
O-ring(s), cause water leaks, or affect system performance.
6 . Lubricate O-ring using only a water based lube such as K-Y or
vegetable/Olive oil . Make certain the O-ring is properly posi-
tioned and reinstall filter housings . Tighten housings hand tight .
Check O-ring for damage and replace if damaged or distorted .
7. Slowly turn on water supply to restore water flow to water sys-
tem and check for any leaks .
8 . Record filter change date in this manual .
Winter Shut-Down Procedures
The following procedure is recommended if you are winterizing
your RV or will not be using your RV for an extended period of time
(longer then a month) .
Important: Filter housings will break if water is left in them in
freezing weather conditions
1 . Shut off the water supply to the filter system . If you are draining
your fresh water holding tank, this will stop the water supply into
the filter system .
2 . Drain the water from the system .
3 . Remove both filter housings by rotating counterclockwise .
4 . Slide out old filters and discard . “O-rings” should be saved for
future use .
5 . Filter housing should be left unscrewed from the lids to insure no
cracking due to freezing weather conditions.
6 . Follow Filter Cartridge Replacement Procedure when you are
ready to use system again .