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INSTALLATION CONTINUED . . .
2. Selecting the Faucet Location
The drinking water faucet should be positioned with function, convenience and
appearance in mind. An adequate flat area is required to allow faucet base to
rest securely. The faucet fits through a 1
1
⁄
" or 1
⁄
" diameter holes designed for spray hoses. The drinking water
1
3
2
8
faucet may be installed using one of these holes, despite their larger size. If
these pre-drilled holes cannot be used or are in an inconvenient location, it
will be necessary to drill a 1
the sink for the faucet.
This procedure may generate dusts which can cause severe
CAUTION:
irritation if inhaled or come in contact with the eyes. The use of
safety glasses and safety mask for this procedure is recommended.
Do not attempt to drill through an all-porcelain or porcelain-coated
CAUTION:
sink. For applications on these types of sinks we recommend using
the sprayer hole or mounting the faucet through the countertop.
When drilling through a countertop make sure the area below the
CAUTION:
drilled area is free of wiring and piping. Make certain that you have
ample room to make the proper connections to the bottom of the
faucet.
Do not drill through a countertop that is more than 1" thick.
CAUTION:
Do not attempt to drill through a tiled, marble, granite or similar
CAUTION:
countertop. Consult a plumber or the countertop manufacturer for
advice or assistance.
The following instructions apply to stainless steel sinks ONLY.
(A) Line bottom of sink with newspaper to prevent shavings, parts or tools
from falling down the drain.
(B) Place masking tape over the area to be drilled to help prevent scratches if
drill bit slips.
(C) Mark point with center punch. Use a 1/4" drill bit to drill a pilot hole
through sink.
(D) Use a 1
⁄
" hole saw to enlarge hole. Smooth rough edges with a file.
1
4
3. Mounting the Faucet
(A) Loosen stem-nut on faucet, remove metal slotted disc (if attached).
(B) Attach large diameter 3/8" drain tube to barb fitting at the faucet base.
This tube should be long enough to reach the drain clamp in Step 4.
(C) Attach small diameter 1/4" drain tube to other barb fitting at faucet base.
This tube should be long enough to reach right side of the RO Assembly.
(D) Slide chrome plate and black rubber washer onto faucet by threading both
drain tubes through the holes on the plate and washer.
(E) Slide white extension onto long threaded section of faucet. Open end of
extension should come in contact with base of faucet.
(F) Apply 3-5 wraps of plumber tape to faucet stem. Screw quick connector
onto end of threads.
(G) Wet end of 3/8" tube. Push into bottom of connector. Tug gently to be sure
connection is complete.
NOTE: To remove the tube, push on the fittings' collar and pull the tube out.
(H) Holding the faucet, feed the three tubes through the hole in the sink.
Position the faucet handle at a desired location
(I) Center the faucet and slip slotted disc between the white extension and the
bottom of the counter or sink. Tighten the stem nut with a wrench until it is
tight.
(J) Firmly insert goose-neck spout into faucet base.
⁄
" hole. Most sinks have pre-drilled
1
4
⁄
" hole in the sink or through countertop next to
1
4
1
2
Pilot Hole
C
1/4"
D
⁄
1
4"
1
⁄
"
1
4
1
⁄
1
4"
D
3
A
I
E
F
G
PENTAIR RO-2550 Installation and Operating Instructions • 5
B
C
A
Mounting
Hole
B
C
D
Counter Top
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