help needed!

[terry.d]

Ihave just purchased a abi globestar caravan which needs a few jobs doing to get her on the road an ready to use next season.
This is the first caravan I have owned and am a complete novice and have no idea!!!!

My main problem at the mo,is the water system and water heater.

It is a carver cascade 2 but when I looked under the seat most of the hoses are disconnected and I cannot make any sense of how to put it back together. I understand the principle of the pump draving water from a container and the cold water running through to be heated but mine is in pieces!!!!!????? any help would be very much apprciated thx