Hallett 30 1” Instruction Manual
Released on 1-Sep-16
– X800058R
Page 19
UV Pure Technologies Inc. © 2016
Disinfecting the Plumbing
Disinfection of the household or facility plumbing should be performed after the
Hallett has been installed and is operating. This procedure should also be done
if the unit is not functioning normally, if the bypass has been used, or if there
has been a high background bacteria count in a water sample. Disinfecting the
plumbing will ensure that any potential bacteria or contaminants in the
distribution system are treated prior to system use.
Please note that this procedure is ineffective against protozoa that can be found
in surface water or shallow wells under the influence of surface water. Under
these circumstances, it is important to perform the disinfecting procedure and
then operate the Hallett in combination with a device for cyst reduction,
approved under the appropriate NSF/ANSI standard and installed upstream of
the unit.
This procedure does not work with sediments or heavy biofilm and
encrustations, which must be removed mechanically.
The accepted practice for sanitizing the household or facility plumbing involves
adding 50 ppm chlorine from bleach for 12 hours and then flushing. This can be
achieved by doing the following:
Step 1:
Turn off the unit by unplugging it.
Step 2:
Shut off the water supply and relieve the water pressure by opening a
faucet.
Step 3:
Remove the filter from its housing and fill the housing with bleach.
Step 4:
Re-mount the housing (but not the filter) and plug in the Hallett to turn it
on.
Step 5:
Once the Hallett is operating, turn on the water supply and run water to
all faucets (hot and cold), toilets, the washing machine and other water-using
appliances
– the bleach must fill every inch of plumbing. The Water Quality light
may come on after the introduction of bleach. If this occurs, use the manual
override on the solenoid valve to keep valve open during procedure.
Return
override to auto position afterward.
Step 6:
When you detect the odor of chlorine at each spot, stop running the
water and let the bleach remain in the lines for at least 12 hours
– turn off the
Hallett unit.
Step 7:
After the waiting period is over, plug in the unit. Once stable, flush every
line for at least five minutes or until the odor of chlorine
is gone. See local
regulations for proper disposal of chlorine residual, especially in the case of
discharge into a septic system.
Step 8:
Now that the disinfection procedure is complete you will need to return
the filter to its housing. Shut off the water supply, relieve water pressure by
opening a faucet, and return the filter to the housing. Allow a few days after a
