36
Cleaning
1
Ensure that the two mini ball valves are closed (to close,
turn the handle perpendicular to the plug/hose end). Remove
the plug from the two mini ball valves by depressing the lock
ring and pulling on the plug. Insert a pressure gauge from the
integrity test kit into the inlet mini ball valve, open valve and
observe system pressure.
The valve is OPEN when
handle is in the position
shown
lock
ring
figure 64
2
Close the inlet and outlet valves, leaving the inlet mini
ball valve open. Using the controller, initiate a manual flush
sequence to bring system pressure to close to zero. Refer to
the instructions in the Controller Functions section under on
how to perform a manual flush sequence. Once the pressure
gauge registers close to zero pressure, stop the manual flush
immediately.
3
Ensure that there is still some water inside the system
after the manual flush. Do not empty the system completely. If
water stops coming out during the manual flush, open the
inlet valve slowly to fill the system again.
WARNING:
Do not use a bottle of
bleach more than 3 months old.
If a bypass valve is installed, the bypass valve should be
closed for the entire procedure to avoid contaminated
water entering the household distribution system.
Contaminated water might cause personal injury and in
some cases death.
This cleaning procedure does NOT disinfect the
household pipes. If potentially microbiologically
unsafe water is present in the pipes, it is strongly
recommended that all pipes be sanitized.
4
With the Internal Prefilter still removed, unscrew the
1/2"
brass plug on the air vent assembly near the backpulse tank.
½
”
Brass
Plug
Air Vent
Assembly
figure 65
Pour 2 cups (500 ml) of 5 - 6% unscented household chlorine
bleach (Clorox) OR 1 cup (250 ml) of 12% chlorine bleach into
the system casing cavity. A funnel may be used in this step to
assist pouring. Replace the 1/2" brass plug. Slowly open the
inlet valve to pressurize the system. Let stand for 15 minutes.
5
Using the controller, activate the manual flush sequence.
Refer to the instructions in the Controller Functions section on
how to perform a manual flush sequence. Run manual flush
2-3 times then proceed to flush thru tap. Once the flushing is
complete, open the outlet valve and a nearby COLD water tap
to flush most of the chlorine from the system. Run the tap fully
open for at least 10 minutes. Further flushing must be
performed by the homeowner later. Refer to the Final Flush by
Homeowner section.
NOTE:
Use only COLD water taps and continue the flow of
water until there is no chlorine smell.
