8
Step 5.
Open the anti-siphoning
valve. Close the storage tank
inlet valve. Open the sampling
valve at the storage tank inlet
(Figure 5-2). Be prepared to
collect water from this point
during the next step.
Step 6.
Set the flow rate by
adjusting the flow rate
adjustment valve on the
standpipe. until the flow through
the sampling valve matches the
value in Table 2. The flow can
be measured by timing how long
it takes to fill a 2-litre pop bottle.
Anti-siphoning
valve
Storage tank
inlet valve
Filter outlet
valve
Sampling
valve
Flow rate
adjustment
valve
Figure 5-2
Step 7.
Connect a hose to the sampling valve at storage tank inlet and begin flushing water
through the filter. Flush the filter until the water becomes clear. Close the sampling valve.
6
Sanitizing Procedure
Care is taken during the manufacture of your water filter to keep it clean and sanitary.
However, during shipping, storage, installation and operation, bacteria could get into the
water filter piping. For this reason, sanitizing is recommended after installation. On
some water supplies, additional periodic sanitizing is also recommended.
Step 1.
Prepare a dilute bleach solution for
sanitizing by mixing 5 ml of common household
bleach (Javex, Clorox, etc.) with 1 litre of water.
Step 2.
Close the filter inlet valve and allow the
filter water level to drop to the “paused” level.
Close the storage tank inlet valve. Attach the refill
hose to the lower valve on the filter standpipe.
Insert a funnel into the end of the hose. Ensure
the flow rate adjustment valve and the anti-
siphoning valve are open. Open the lower valve
on the filter standpipe (figure 6-1).
Step 3.
Hold the end of the hose at the same
height as the top of the filter. Pour the solution
into the funnel. Close the lower valve on the filter
standpipe. Let the solution “sit” for 20 minutes.
This will give sufficient contact time for the
sanitizing solution to kill any bacteria that may be
present.
Standpipe
lower valve
valve
Storage tank
inlet valve
Sampling valve
Refill hose
Flow rate
adjustment
valve
Filter
outlet
valve
Figure 6-1
