Plumbing And Water Tanks - Columbia Coronado 25 Owenrs Manual

Plumbing and Water Tanks

5.9
WATER TANK INSTALLATION:
1. Formica sheet shall be adhered to both sides of 3/8 plywood
(inside only where the tank lid is to serve as the cabin sole) by
application of a suitable contact cement, either contact cement
#2210 from 3M Company or spray contact cement
Morton Company.
2. The tank drain thru-hull fitting shall be installed after the
installer has inspected the tank wall around the bored hole for the
thru-hull fitting against voids and weakness of the wall. The
thru-hull is to be sealed with silicone sealant.
be used on the exterior. The tank vent line thru-hull, if required by
the plumbing drawing, shall be installed in the same manner.
3. The installer is to further inspect the inside of the tank against
voids between the gelcoat and the laminate, particularly in the
corners, which will lead to leaks.
The lid, prior to installation, shall be fitted with
4.
the required fill fitting. The fill shall be thru bolted
to the lid and sealed both sides with silicone sealant.
NOTE: If a vent line or over-flow line is not required by
the plumbing drawing a 1/8" diameter hole will be
drilled in the fill cap.
The fill shall be so located in the tank lid that it will be most easily
accessible for filling when a cushion or carpet is in place over the
tank.
5. The lid shall be "dry" fitted to the tank top and drilled for mounting
screws. There shall be a mounting screw in each corner. The spacing
between screw centers shall be
6. The inside of the tank shall be thoroughly cleaned prior to installing
the top. Bed the top in a liberal bead of silicone sealant. The screws
shall be oval head selftapping and finish washers shall be used for all
berthtop installations. Cabin sole installations shall use pan head
self-tapping screws covered with plugs. The screws must be sealed.
No. 5E-410
4" maximum.
SECTION 5
Page 16
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plywood donut is to
A