Hague WaterMax H3500 Owner's Manual And Installation Manual page 19

Installation Steps and Start-Up Procedures, Cont.
Install the Spigot Assembly
Step 3
The most convenient installation would allow the use of an existing spray attachment hole. If the
spray attachment hole is not available, then follow the basic procedures outlined below.
Drilling a stainless steel sink:
A. Mark the sink location for the center of the faucet.
B. Impact punch the sink top to provide a starting point
for the drill bit.
C. Drill a 1/4-inch pilot hole in the sink using a
high-speed drill bit.
D.
Drill a 1/2-inch diameter hole to accept the bolt of a
1-1/4-inch Greenlee Chassis Punch.
E. Set the punch and turn the nut with a wrench to cut
the hole. Follow Greenlee instructions.
Drilling a porcelain clad steel or cast iron sink:
A. Mark the sink location for the center of the faucet. Be
sure the location you select is not over a reinforcing
rib. Check the location from below.
B. Grind away a 1-1/4-inch diameter circle in the
porcelain using a silicon/carbide wheel and
high-speed grinder (See Installation Tool List), down
to the metal surface of the sink. (See Figure 6)
C. Impact punch a small indent in the center of the area
ground away.
D.
Drill a 1/4-inch pilot hole through the metal base
using a standard high-speed drill bit.
Caution: Be careful when the drill is about to penetrate
the base metal of the sink. Reduce the speed and
support the drill so the drill chuck does not impact the
porcelain or enamel.
E.
Use the pilot hole as a guide to drill a minimum 1-inch up
to a 1-1/4-inch diameter hole with carbide bits to mount
the RO air gap spigot.
WaterMax RO Owner's Manual
Figure 5: Air Gap Spigot Assembly
Figure 6: Grinding Wheel
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