Shown below is a photo of a 9 gallon water tank & electric pump which are installed under the bed.
There are fill & vent lines at left end of tank, going to the outside.
Barely visable at right end of tank, is a sight gauge to view water level.

Shown below is a photo of the sink and faucet with off/on switch.

Shown below is a photo of the area below the sink.
The sink drains directly outside.
