SOLID COPPER RISER TUBE: Same procedure as flex tubing except you must
cut a piece of the riser tube about 3/4" to 1" so the feed adaptor can fit between
faucet and riser tube.
3. FAUCET
The faucet should be positioned with aesthetics, function and convenience in
mind. An ample flat area is required for the faucet base so that it can be drawn
down tight. Conditions that may be present which could eliminate the need to
drill a hole in the sink: if a hole was previously installed in the sink and covered
by a chrome hole cover; remove the spray hose and plug the outlet under the
main faucet. Be sure to check if the spray used a diverter at the base of the
spout. If so, remove it to avoid trouble later. Spray diverter may pop up and shut
off water to the main faucet.
If space is not available on the upper sink area, the faucet could be located in the
counter top at the edge of the sink. Be careful to watch for obstruction below,
i.e., drawers, cabinet walls, support braces, etc. If the counter top is ceramic tile,
the method for drilling the hole would be the same as for porcelain sinks.
The sink drilling process, although not complicated, requires a certain amount of
caution and forethought. Porcelain sinks can be chipped if care is not exercised
when drilling the hole for the faucet assembly.
AIR GAP FAUCET HOLE DRILLING PROCESS:
PORCELAIN SINKS: Grind the porcelain away from hole area with a grinding
stone or wheel, before drilling through the metal with the metal drill, and carbide
tipped hole saw. Use a ¼" carbide tipped drill, and drill a guide hole. Then use
1-1/8" carbide punch to enlarge the hole.
STAINLESS STEEL SINKS: Drilling through stainless steel sinks can be
achieved by drilling a 3/8" hole, then using a 1-1/8" chassis punch to enlarge.
NON-AIRGAP HOLE DRILLING PROCESS:
PORCELAIN SINKS: Only a ½" hole is required for the NON AIRGAP faucet. To
drill the hole, begin with a small drill bit and graduate to larger drill bits until a ½"
hole is achieved. Make sure when starting to drill, to begin slowly through the
porcelain portion of the sink so that chipping is cut down to a minimum.
Please see page 16 of this
manual for faucet schematics