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Step 1: Water Inlet – Three Options
Water Inlet Option 1 –
Connect from Cold Water Valve Under Sink w/ 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.
Step 1. a. Turn off the Cold Water Supply Valve (CWSV) under the sink and open the kitchen
faucet to release pressure. Get a towel or bucket to catch any water drips
. Disconnect the
kitchen faucet connector pipe from the CWSV.
Step 1. 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. Plumber's tape may be used to seal the
connection.
Step 1. 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 get a p
roper seal.
Step 1. d. Connect the 1/4'' RED 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.
Water Inlet Option 2 –
Connect from Kitchen/Bathroom Faucet w/ 156F34GH + 34GH14K Connectors
Step 1. a. Remove the aerator from the faucet. Your hands should be enough, but pliers can be
used. Save the aerator, which may be needed if the system is removed.
Step 1. b. Screw the 156F34
GH adaptor onto the 34GH14K connector, then screw the whole
connector onto the faucet. Usually, the connectors can be hand tightened; if necessary, use a
plier. Plumber's tape may be used to seal the connection.
Step 1. c. Connect the 1/4'' RED tubing to the 34GH14K connector.
Water Inlet Option 3 –
Connect from Garden Hose Bibb w/ 34GH14K Connector
Step 1. a. Twist the 34GH14K connector onto the garden hose bibb by hand, then use a plier to
tighten it as needed. Plumber's tape may be used to seal the connection.
Step 1. b. Connect the 1/4'' RED tubing to the 34GH14K connector.
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