Sanitizing Filter Change Instructions
1.
Turn off the feed water to the system and shut off the ice maker power and water
supply valve (if applicable).
2.
Turn on the faucet to relieve any pressure on the system and make sure water has
stopped flowing out of the faucet.
3.
Remove the membrane and all the lower vertical sump filters. The post carbon filter
can be left in place at this time. Use rubber gloves and store the membrane in water
or a Ziploc bag to prevent damage or discard the membrane if it is being replaced.
4.
Using a plastic syringe, collect 5 ml of a sanitizing solution (Recommend Sani-Sys-
tem) and set aside. Pour the remainder of the packet of Sani-System directly into the
sediment filter housing (where the orange inlet feed line attaches). Reattach all filter
housings and membrane caps. Do not install the filters at this time. Remove the tube
that connects to the storage tank from the RO module and invert it to remove the wa-
ter from the tube. Inject all of the Sani-System solution from the plastic syringe into
the line. Reattach the tank tube. Make sure the RO water faucet is closed and turn
on the water supply.
5.
Allow the system to fill with water. The time will vary depending on the water pres-
sure. However, the system should be full within 5 - 10 minutes without the filters or
membrane. Allow the system to rest for 10 minutes. Open the faucet and allow it to
drain for 10 minutes after which, close the faucet. Allow the system to fill and rest for
another 10 minutes. Open the faucet again and allow the system to flush for another
10 minutes. Shut off the inlet supply and open the faucet to depressurize the system.
Remove the sumps and install the filters and membrane.
6.
The white fiber-type filter is installed in the cap for the Inlet (sediment) filter sump.
Lubricate the O-ring at the top of the sump and the O-rings on the filter with a small
amount of silicone. Insert the filter into the sump cap. Install the filter sump, tighten
the filter sump hand tight then, using a filter wrench, tighten an additional 1/4 turn. Do
not over tighten.
7.
The carbon block filters are installed into the next two sumps. The white capped car-
bon block will go in the middle sump. The green capped (Chloramine) carbon block
will go in the last sump. Lubricate the O-ring at the top of each sump and the O-rings
on the filters with a small amount of silicone. Insert the filters into the filter housing
caps then install the filter sumps. Tighten the filter sumps hand tight then, using the
filter wrench, turn an additional 1/4 turn. Do not over tighten.
8.
The inline filter is installed on the top of the membrane housing. The fittings in each
end of the old post filter must be removed and wrapped with 3-4 layers of 1/2" Teflon
tape after having removed the old layer of Teflon tape. When looking at the threaded
side of the fitting, wrap clockwise to ensure a proper seal. The tee fitting will screw
into the inlet side of the new filter while the elbow fitting will screw into the outlet side.
Re-install the tubing and make sure everything is sealed.
22