Greenway Home Products VPS1140 - Manual (Page 7)

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3.3 In-House Water Distribution System Disinfection
The following procedure is recommended for non-municipally supplied water installations of the VPS1140 system. For systems
installed on municipally water system, plumbing system disinfection is at the discretion of the user.
The entire household water system, between the VPS1140 and your taps and water outlets, can be sterilized before system start up in order to
destroy any residual contamination. The same treatment can also be completed at any time in the future that untreated water is allowed into
your distribution system (e.g. through an inadvertent by-pass, plumbing additions or repairs, etc.) or in the case of seasonal dwellings at the
beginning of each operating season.
Unscented household bleach (5% sodium hypochlorite) is an acceptable decontaminant when used at the rate of 1 liter, (0.3 gallons) of bleach
per 1000 liters, (264 gallons) of household plumbing volume. This includes the volume of water contained in all lines, hot water tanks, etc.
located 'downstream' of the filter housings. This ratio provides a dosage of 50 mg / L or 50 ppm. Using a volume of 1 liter, (0.3 gallons) of
bleach would be erring on the side of caution for most home and cottage plumbing volumes.
It is best to perform the super chlorination procedure at night as the concentration of bleach needs to remain in the distribution
system from 2-12 hours. To disinfect the distribution system, carry out the following steps:
1. Familiarize yourself with the various shut-off valves on your system. It is important to understand which combinations of valve
positions allow you to isolate the VPS1140, by-pass the unit without by-passing the cartridge filter housings or by-passing the
VPS1140 and pre-filtration systems, which enables isolation of the filter housing for removal or replacement of the Sediment and
Carbon Block filter cartridges.
2. Shut the main water supply off and drain the hot water tank and any other storage tanks that may be downstream of the filter
housing.
3. Unplug the Vitapur unit and then close the valves at its inlet and outlet ports.
4. Close the valves necessary to isolate and remove the Sediment filter cartridge and Carbon Block filter cartridge. Remove the filter
housings using the wrench provided with the system. Pour 1 liter, (0.3 gallons) of bleach into the sediment filter housing and
reattach to the filter cap. Leave the carbon filter out during super-chlorination.
5. Open valves closed in #3 and #4 above, as well as the main water supply valve and the valve that allows water from the Carbon
Block filter housing to by-pass the vitapur ® unit.
6. Go to the furthest tap in the house and run the cold water until you notice the odor of bleach. Repeat this step at all other taps,
washing machine, and all toilets.
7. Leave all taps shut off for 2-12 hours.
8. Remove the filter housings with the wrench provided with the system. Re-insert both the Sediment and Carbon Block filters into
their housings and attach them to the system. Make sure that the housings are seated properly against the filter heads.
9. Check the system for any leaks.
10. Plug the system in, and then flush all the lines for a minimum of 15 minutes.
Note: The introduction of a chlorine disinfection solution to a hot water heater that has been used with untreated hard water or water
with excessive iron, manganese or other organic contaminants may lead to oxidization of these materials. If you feel that these
conditions may apply to your installation, a thorough flushing of the hot water tank should be done to eliminate the oxidized material
from the system.