*
Fill overflow valve and control cable (cable not shown)

*
Two water tank support shear fittings

*
Potable water distribution line

*
Tank drain valve.

The drain valve for the aft part of the overhead distribution system is in the aft cargo compartment, under the floor.
EFFECTIVITY BEJ ALL  38-11-00 
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D633W101-BEJ  Sep 05/2002 

WATER STORAGE AND DISTRIBUTION -BULK CARGO COMPARTMENT COMPONENT LOCATIONS

EFFECTIVITY BEJ ALL  38-11-00 
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WATER STORAGE AND DISTRIBUTION -PASSENGER COMPARTMENT COMPONENT LOCATIONS

Component Locations
The isolation/drain valve is above the ceiling on the left. It is aft of door 2 left at station 927.
The isolation valve is above the ceiling in the aft part of the passenger compartment. It is forward of door 4 left at station 1900.
EFFECTIVITY BEJ ALL  38-11-00 
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D633W101-BEJ  Sep 05/2002 

WATER STORAGE AND DISTRIBUTION -PASSENGER COMPARTMENT COMPONENT LOCATIONS

EFFECTIVITY BEJ ALL  38-11-00 
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D633W101-BEJ  Jan 05/2002 

WATER STORAGE AND DISTRIBUTION -LAVATORY COMPONENT LOCATIONS

Component Locations
The potable water shutoff valve is behind the mirror.
The faucet is above the sink.
These components are behind the door below the sink:

*
Water heater

*
Water filter

*
Drain valve.

EFFECTIVITY BEJ ALL  38-11-00 
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WATER STORAGE AND DISTRIBUTION -LAVATORY COMPONENT LOCATIONS

EFFECTIVITY BEJ ALL  38-11-00 
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D633W101-BEJ  Jan 05/2002 

WATER STORAGE AND DISTRIBUTION -SERVICE PANEL COMPONENT LOCATIONS

Component Locations
The aft potable water service panel is on the right side of the airplane. It is between the aft cargo compartment door and the bulk cargo compartment door.
The forward potable system drain panel is on the right side of the airplane. It is aft of the forward cargo compartment door.
There are three water drains. One is near the forward potable water system drain panel. The second one is near the aft potable water service panel. The third is aft of the passenger entry door 4, on the right lower side of the fuselage.
EFFECTIVITY BEJ ALL  38-11-00 
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WATER STORAGE AND DISTRIBUTION -SERVICE PANEL COMPONENT LOCATIONS

EFFECTIVITY BEJ ALL  38-11-00 
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D633W101-BEJ  Jan 05/2002 

WATER STORAGE AND DISTRIBUTION -FORWARD DRAIN AND AFT SERVICE PANELS

Purpose
The potable water service and drain panels let you fill and drain water from the potable water system.
Location
The forward potable water drain panel is on the right lower side of the airplane. It is between the forward cargo door and the wing-to-body fairing. The panel is 8.4 to 9.2 feet (2.6 to 2.8 meters) above the ground.
The aft potable water service panel is on the right lower side of the airplane. It is between the aft cargo door and the bulk cargo door. The panel is 9.5 to 10.3 feet (2.9 to 3.1 meters) above the ground.
Forward Drain Panel
The forward potable water drain panel has these parts:
*
Placards

*
Forward system drain valve handle

*
Door with a bracket.

The bracket on the door makes sure the door can not close if the drain valve handle is not in the correction position for flight.
Aft Service Panel
The aft potable water service panel has these parts:
*
Placards

*
Aft system drain valve handle

*
Tank fill valve handle

*
Water quantity gage

BEJ 001-003
* Tank fill port and cap
BEJ 004-999
* Tank fill port and rigid cup
BEJ 001-003
* Door with brackets (not shown).
BEJ 004-999
* Door with brackets and flexible cup.
The rigid cup and the flexible cup fit together when the door is in the close position. The cups collect any water from the service line that does not drain after serving of the potable water system. If the collected water freezes, you can remove the ice by hand.
BEJ ALL
The brackets on the door make sure the door can not close if these components are not in the correct position for flight:
* Aft system drain valve handle
BEJ 001-003
* Tank fill port cap
BEJ ALL
　
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