Whittaker 299, Owner'S Manual

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6.PLUMBING SYSTEMS
We have attempted to keep Jour plumbing system as simple as
possible especially where thru-hull fittings are concerned.
Wherever possible water discharge is above the waterline and -
where two items can use a common below waterline thru-hull, this
has been accomplished. Flush type thru-hulls have been used
throughout the yacht to minimize turbulence and maximize speed.
Follow1ng is a general description of the plumbing system. You
should familiarize yourself with this system and maintain it so
as to keep fresh water in your tanks and seawater outside of
your hull.
6.1
THRU-HULLS
A thru-hull list and accessibility chart is presented in Section
2.4. You should familiarize yourself with these hull
penetrations as preparation for an unforeseen emergency. All
below water thru-hull penetrations are protected with either a
stuffingbox or seacock, depending upon their function.
To operate the seacocks first unscrew the small "T" handle
completely counter clockwise. Next rotate the lever handle to a
position perpendicular to the base of the seacock to open, or
parallel to the base to close. Finally screw in the "T” handle
clockwise. When the "T" handle is backed off it relieves the
seal and pressure on the tapered plug in the seacock. In this
position the seacock will leak and it is therefore normal to
experience some leakage when turning the seacock handle. It is
mandatory that the seal be reestablished by tightening the "T"
handle as soon as the seacock is rotated from one position to
the other. These seacocks should be serviced and lubricated with
waterproof grease at least annually. When operated as described
above they should give satisfactory service for many years. When
leaving your boat, safe practice dictates closing all of the
seacocks.
6.2 FRESH WATER SYSTEM
One 30 gallon aluminum water tank is located to port under the
settee berth. The tank is vented, in the head locker and this
vent tube opening must be kept clear in order to pump water from
the tank. The deck fill plate for this tank is located on the
port side deck near the upper chainplate.
A foot pump is utilized to supply water to the galley and a hand
pump for the head sink. When filling the system for the