Tiara Yachts C49, Owner'S Manual, Page: 62 / 152

Section 5 Plumbing Systems
5-8
43 LS
Raw water strainer (left) and pump (typi-
cal)
Priming the System
Open the ball valve and switch ON the
WASHDOWN switch on the DC distribution
panel (installed in the starboard cabin upper
electrical cabinet)
. Run the pump until all air
is purged from the system. Close the thru-
hull ball valve before the boat is hauled from
the water to eliminate any air lock in the sys-
tem. It may be necessary to re-prime the raw
water system if the system is not used for an
extended period.
CAUTION
!
DO NOT operate the high-pressure
pump when dry, or damage to the
pump will result. Turn the raw water
pump switch OFF when leaving the
boat unattended.
5.5 Drainage
Some of the drain thru-hull fittings are
equipped with ball valves that are always
open under normal operating conditions.
Check and operate the drain valves at least
once a month to make sure they are in good
condition and operating properly. Also, check
the drain system to ensure it is free flowing
and that the hoses on the thru-hull fittings are
secure and not leaking.
Review and become familiar with the location
of your boat’s thru-hull drain valves.
In the event of an emergency, close the
valves to prevent sea water from entering the
boat through the drainage system.
NOTE :
Having one or more drain valves closed can
be dangerous to the boat and all onboard. If
this occurs, distribute PFDs and take all nec -
essary safety precautions, including notifying
the Coast Guard or local agency, until the
problem is determined and corrected.
Bilge Drainage
The aft bilge pump is located to centerline
in the aft mechanical space; the mid pump
is located in the forward floor area of the
mechanical space, and the forward pump is
located under the cabin sole.
All bilge pumps pump water out of thru-hulls
located above the waterline in the hull. A high
water bilge alarm monitors excessive bilge
water levels and signals a high water con-
dition through a visual and audible alarm.
Under this condition, the bilge pumps will be
automatically activated and the boat horn
will sound until the bilge water falls to a safe
level. The high water alarm is installed in the
starboard cabin lower electrical cabinet. See
section 4, Electrical Systems, for additional
information on bilge pump and high water
bilge alarm operations.
Excess water in the bilge area will adversely
affect the handling and maneuverability of
the boat and can cause personal injury. Use
the
BILGE buttons at the helm to manually
activate the bilge pumps briefly each time the
boat is used to ensure pumps are operating
properly. There is a delay built into the bilge
pump’s float switch before the pump will acti -
vate. Refer to the bilge pump and float switch
owner’s manuals for details.