Tayana -48 Owner's Manual page 33

Located in engine room
Under the saloon floor
The fresh water system drawing is attached on appendices,
and is serviced by two tanks with totally capacity of 964 liters
（250 gallon）. They located under the floor of main saloon.
The tanks are constructed with Stainless Steel #304 and
incorporate fore and after anti surge baffles to aid the vessel's
stability.
The tanks are filled via decks filler located on deck port and
starboard sides, The tank has a breather connected to a skin
fitting in the vessel's top side. The breather should be checked
and cleaned in accordance with the maintenance schedule, as
any obstruction will impede the operation of the fresh water
system.
The water tank gauge can verify the water level in the tank.
This gauge is at navigation table
The fresh water pump is located in the engine compartment .
Rust and dirt, taste and odor filters are fitted between tank and
pump. lean or change the filters in accordance with maintenance
schedule. The pump is activated automatically on demand by
detecting the pressure drop caused by operation of a ta in the
hot or cold water system.
The pump is powered through circuit breaker of DC, on nav.
station DC control panel.
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