![background image](http://html1.mh-extra.com/html/watts/wqc4ro11-50/wqc4ro11-50_installation-operation-and-maintenance-manual_3883338009.webp)
9
Annual Sanitization
NOTICE
Do not change your post-carbon filter
until the sanitization has been complet-
ed. The pre-filters and membrane can
be changed before the sanitization
Step A -
Turn off the water supply to your
RO system at the Adapt-A-Valve
and open the RO faucet to drain
the storage tank .
NOTICE
If you have connected your RO system
to a refrigerator/ice maker, make sure
the connection has been turned off.
Do not re-open the connection until
the sanitization process is complete.
Step B -
Locate the tube that runs be-
tween your filter module and the
storage tank and disconnect at
both ends .
Step C -
Drain any remaining water in the
tube
Step D -
Hold both ends of the tube
together with the ends pointed
away from your face . Using
a dosing syringe (see figure)
slowly insert 1 teaspoon (5 mL)
of common household bleach
into the tube .
WARNING
!
Do not use needle syringe
Step E -
While covering one end of the tube with your finger, insert
the other into the tank . Then insert the open end into the
filter module .
Step F -
Turn the incoming water back on and let the system fill for
approximately 10 minutes
Step G -
Turn off the incoming water and let the system sit for 1
minute .
Step H -
Drain the system completely and then follow the startup
procedure - filling then draining two full tanks of water .
Step I -
Replace the post-carbon filter once complete .
DANGER
!
IF BLEACH GETS IN EYES: Hold eye open
and rinse slowly and gently with water for 15 -
20 minutes. Remove contact lenses if present,
after the first 5 minutes, then continue rinsing
eye. Call a poison control center or doctor for
treatment advice.
Check Air Pressure in the Tank
NOTICE
Check air pressure only when tank is empty of water!
Check air pressure in the storage tank
when you notice a decrease in available
water from the RO system . Air can be
added with a bicycle pump using the
schrader valve that is located on the lower
side of the tank behind the blue plastic
cap .
Step A -
Turn off the incoming water
supply to the RO .
Step B -
Open the RO Faucet and allow
water to drain from the tank until
it is completely empty .
TIP:
When water from the RO faucet slows to a trickle, with
the faucet still in the open position, you may add air to
the tank to purge any left over water, this will ensure
that the tank is completely empty.
Step C
- Once all water in the tank is purged, check air pressure
using an air pressure gauge, it should read between 5 - 7
PSI . (Digital air pressure gauge is recommended)
Step D -
Follow startup procedure on page 8 .
Flow Restrictor Maintenance
Your reverse osmosis system is equipped
with a Spiral flow restrictor . This flow
restrictor is pre-installed inside of the drain
connection elbow labeled “Drain” . It is
maintenance free and does not need to
be replaced when the RO membrane is
changed .
TO REMOVE
SCHRADER
VALVE
FLOW
RESTRICTOR
ELBOW
POINT HOSE
ENDS AWAY
FROM FACE
DOSING SYRINGE
WITH NO NEEDLE