Ispring RCC7AK User Manual page 7

-Step 1: Install the Vertical Filters: Stages 1, 2, and 3
1.1 Make sure O-ring is seated on top of filter housings. Food-grade lubricant such as Vaseline or
silicon jelly will help O-ring stay in place and seal better.
1.2 Filter cartridges are preserved in plastic wrap. Remove the wrapping and logo sticker.
1.3 When placing the filter cartridge into its housing, make sure the knob protruding from the bottom
of the housing is inserted into the hole of the filter.
1.4 Screw the housing, with filters attached, onto the housing caps (caps are pre-attached onto the
system). The cap also has a center knob which should be inserted into the hole of filter cartridge.
Twist the housing on in clockwise direction by hand, and then use housing wrench to tighten it up
for about 1/4 – 1/2 turn. Do not over tighten. This can cause leaks and make it difficult to
unscrew the housing when replacing filters.
1.5 Follow the steps 1.1 – 1.4 to install the GAC and CTO filters. *note* the second stage GAC is the
only filter that must go in a certain way. Make sure the rubber washer on the end of the GAC filter
faces toward the top (open end of housing) thereby attaching to the housing cap.
- Step 2: Install Reverse Osmosis Membrane
2.1 RO membrane is sealed and preserved in moisture. Remove it from plastic bag.
2.2 Remove the membrane housing screw cap. First, you will need to disconnect the white 1 / 4"
tubing from elbow quick-fitting on membrane housing, and then unscrew (counterclockwise) cap
from housing (refer to How to Use Quick-Fitting section).
2.3 Firmly insert membrane into housing with the smaller end that has two black O-rings first.
2.4 Screw cap and insert white tubing back on. Tighten up using small plastic housing wrench but do
not over tighten.
-Step 3: Install 3/8" Feed Water Adapter (AFW)
3.1 Turn off the Cold Water Line at your sink via the Cold Water Supply Valve (CWSV). Turn on
kitchen faucet to release any pressure and make sure water has stopped before proceeding to the
next step.
3.2 Get a towel or basket to catch any water drips. Unscrew Cold Water Supply Flex Pipe (CWSFP)
from CWSV. Wrap CWSV with Teflon tape and screw on the AFW at the female end with O-ring.
Tighten using wrench or pliers. Note, the AFW in iSpring tool kit is 3/8", which fits most common
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