Water Distribution System

A main water distribution line runs from the tank into the space above the cabin ceiling,from there individual supply lines go to the galleys and toilets.

The distribution lines are usually of reinforced plastic tubing enclosed in an aluminium shroud.The outer shroud prevents leaking water dripping on to the cabin ceiling.The shroud conveys any leaking water to the lower fuselage area via drain tubes.The water then drains out of the fuselage via the drains.

Liquid Flush Toilets

Flush toilets are the most common type of toilet found in passenger aircraft.

Each toilet is completely self-contained, its waste collection tank being mounted directly below the toilet bowl.Each toilet unit is installed above the toilet compartment.

It consists of:

1. A seat. 

2. Cover and surround.

3. Toilet bowl

4. Tank top and flushing system 

5. Waste tank and outlet bowl

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  Below diagram shows an overview operational characteristics of an liquid flush type toilet.the ground connections and the ground flushing and cleaning method is very clearly shown in it.