I have been given a water filtration plant and would like to know what
it is so I can get bits and get it going.

It has two components. One being a blue gas type bottle that has one
top tap with a yellow pipe from it. The tap is a small brass butterfly
type and just shuts the bottle off. There is also a bicycle valve type
connection on the side of the bottle.

The main part is a white panel about 10 inches by 16 inches.
This has three plastic cylinders on it, a white one on each side and a
bigger blue one in the middle. There is a black valve between the LH
white and middle blue cylinder.

Pipes go from one cylinder into another and I have blue, black, red,
and yellow pipes trailing around.

One must be a mains inlet and another the pipe to the outlet tap. The
yellow goes to the blue bottle. That leaves a pipe that appears to go
nowhere.

Any sort of help appreciated in this.