Biige Pumping Systems (See Figure; Sanitation Systems; Holding Tank - Tayana 37 Operation & Maintenance Manual

heater will last at least 5 years. The most likely failure is the electrical heating
element. If this should happen, a new element may be obtained from almost any
camper store and it is a simple matter to install.
2. BiIge Pumping Systems (SEE FIGURE V.-3.)
The TAYANA 37 is equipped with two bilge pumps--one electrical and one
hand operated. Both of these pumps should be checked every day that the yacht
is sailed.
The electrical bilge pump is by PAR and is located in the same compartment as
the fresh water pump. The intake hose goes down past the engine and into the
bilge sump below the engine. The pump outlet is just above the water line on
the side of the yacht. The most common failure is a dirty pick-up screen. This
may be cleaned simply by pulling the intake hose up from the sump and
removing the dirt. A few failures because of dirt in the bilge will probably result
in a greater effort to keep the bilges clean and sweet.
The hand bilge pump is generally located around the mast step. The hand bilge
pump serves two purposes--it pumps the bilge and it pumps the holding tank.
By following the intake line from the pump aft, one will come to a set of two
valves. With one valve closed and the other open you can see that the pump
clears the bilge. By reversing the closure of the valves, the pump clears the
holding tank. A little experimenting will show you the proper valve operation.
There is generally a third bilge pump mounted on the engine Yanmar 3QM30).
This pump is always operating when the engine is running. If your engine has
such a pump it is important to remember that the bilge is constantly being
cleared and a leak might not be apparent by simply looking into the bilge to see
if there is water.

3. Sanitation Systems

a. Holding Tank
Your 37 has a holding tank system which is legal anywhere. The toilet
may be pumped either into the holding tank or overboard directly. If the
holding tank is used, it may be cleared either through an on-deck fitting
or by the use of the bilge pump, as described above.
The holding tank is located under the engine. It should be kept clean by
pumping clear water into it periodically. Detergent is useful if it has
been used. The inlet to the tank may be reached by lifting the fresh water
V-28