4
Special Section
Procedure For Drilling Hole Through Porcelain/Enamel/Ceramic Sinks With Sheet Metal or Cast Iron
Base
Recommended tools:
Variable Speed Drill
Porcelain Cutter Tool Set (9/16” Size)
Plumber’s Putty
Note:
It is important to understand this procedure.
1.
The glassy layer of porcelain/enamel/ceramic must be scored through to the metal base creating a disk.
2.
This disc must be removed while protecting the surrounding decorative coating against chipping
or fracturing.
3.
The base metal must be drilled through to complete the hole.
Procedure:
A.
Mark center for 9/16” hole.
B.
Form a dam of shallow putty around hole location and fill with enough water to lubricate carbide drill bit.
C.
Carefully drill pilot hole through porcelain/enamel/ceramic and base metal using a carbide pilot drill.
Always operate drill with light pressure at slow speed (300-400 rpm).
D.
Drill porcelain/enamel/ceramic using special 9/16” cutting tool, making certain a complete ring has
been cut through to the sinks metal base.
E.
Change to metal cutting drill bit and drill out the center of the ring, making sure not to contact outer
rim of decorative coating. Cut through metal sink base.
Troubleshooting Section
Water leaks from threaded connection:
Tighten fittings or hex nut a bit more until leak stops. If leaks persist, shut off water at the cold water valve,
remove threaded fittings, reapply Teflon
®
tape around the fitting to the left and screw back into head
assembly or saddle valve.
Water leaks at quick connect fittings:
Push tubing in as far as it will go. If leaking continues, close cold water valve and remove water line by
pushing in on the connector collet while pulling the tubing away. Inspect tubing for cracks. If tubing is
cracked, simply cut that portion away and re-insert tubing into quick connect fitting (see Figure 1).
Water does not flow from the drinking water system faucet:
Check to see if the main water line valve is open, allowing water to flow to the filter. If water still does not
flow from the drinking water system faucet, make sure the filter’s shut-off valve is reset to 625 gallons. Also,
check for crimps or sharp bends in the blue and yellow tubing.
Water appears cloudy or air comes out of the drinking water system faucet:
Flush filter for a full five (5) minutes to remove any carbon fines or trapped air in the filter and water lines.
Note:
It may take a week or more for residual air to be completely flushed from the system.
