AIR GAP FAUCET INSTALLATION
Installation of the Air Gap Faucet is a required part of installation and is the RO Purification System's means of drain
water backflow prevention. If sink top includes an unused knockout hole, remove knockout cover plate and mount
faucet there. If no knockout hole exists, drill 1 1/4” diameter mounting hole in stainless steel sink top using 1¼" Bi-
metal hole saw and drill motor. Faucet should be positioned so it empties into sink and spout swivels freely for con-
venience. Before drilling mounting hole, check underneath sink to ensure nothing will interfere with Air Gap Faucet
plumbing such as reinforcment ribs, support brackets, or other under-sink construction.
CAUTION:
TO PREVENT EYE INJURY, SAFETY GLASSES MUST BE WORN
DURING SINK HOLE DRILLING OPERATIONS.
1.
Review components shown in Air Gap Faucet diagram. (Figure 2)
2.
Trim 1/4” Blue Faucet Supply Tube to 6" length to maximize product water flow rate.
3.
Wet o-rings on faucet spout with water and insert into faucet body until seated.
4.
Remove hardware from threaded Faucet Stud - except for chrome base plate and rubber washer.
5.
From above sink/counter-top, feed all tubing along with Faucet Stud through 1 1/4” diameter mounting hole and
position faucet spout over sink.
6.
From below sink/counter-top, install white spacer (open side towards Air Gap Tubes), flat washer, and hex nut onto
threaded Faucet Stud and tighten hex nut by hand.
7.
Loosen hex nut enough to slide slotted washer (open side towards Air Gap Tubes) between white
spacer and underside of sink/counter-top.
8.
After rechecking faucet orientation, tighten hex nut with 9/16" wrench until Air Gap Faucet is securely mounted.
C.L.
Figure 2
7
C.L.
Chrome Base Plate
Rubber Washer
Slotted Washer
Flat Washer
Faucet Stud
Hex Nut
Air Gap Hole
1/4” Brine Inlet Air Gap Tube
(Green)
Red SFC Flow
Control Tube
3/8” Brine Tube (Black)
(Connect to drain)
To RO Manifold
1/4” Faucet
Supply Tube
(Blue)
Faucet Elbow
To RO Manifold
Faucet Elbow
White Spacer
Faucet Body
Faucet Spout
Stainless Steel
Sink/Counter-top
