Installation
Step 1. Install Feed Water Adapter (AFW43)
It is highly recommended that you watch the video ''How to Install a Feed Water Adapter for
Reverse Osmosis (RO) and Other Applications | iSpring AFW43'' on YouTube.
A. Turn off the Cold Water Supply Valve (CWSV) under the sink and open the kitchen faucet to
release pressure. Prepare a towel or bucket to catch any water drips. Disconnect the kitchen
faucet connector pipe from the CWSV.
B. Install the Feed Water Adapter onto the CWSV and tighten it using a wrench or pliers. Make
sure the O-ring is seated inside the adaptor.
C. Re-install the kitchen faucet connector pipe onto the male end of the Feed Water Adapter. Turn
the handle of the Feed Water Adapter to the perpendicular OFF position. Turn on the CWSV
slowly, and ensure you are getting a proper seal.
D. Connect the 1/4'' tubing to the Feed Water Adapter.
The included bushing can be threaded on either side of the Feed Water Adapter to fit the
configuration of both 3/8'' COMP and 1/2'' NPT.
Step 2. Install Drinking Water Faucet
A. Drill a hole to install the faucet
a. If your kitchen sink does not have an existing 1/2" faucet hole, drill a hole under the
guidance of How to drill a Hole on Sink or Countertop section on page 5. Wipe clean and
dry the area.
b. Slip the front plate on the faucet stem, followed by the front washer. Insert the faucet stem
into the hole on the countertop. Under the sink, slip on the back washer, and tighten the nut
with the lock washer wing nut.
c. Slide the quick fitting up to the push-in adapter on the base so that it seats securely into the
faucet stem, then lock it in place by sliding the blue clip under the collet of the quick fitting.
d. Insert the tubing about 1/2" into the push-in fitting, and again, secure it with the clip.
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