When I bought it, the Fiber Stream
had an evaporative cooler, NOT an air conditioner, on the roof.
The previous owner had jerry-rigged a water tank and pump in the kitchen sink, with hoses that ran through the open kitchen window and up to the roof.
It DID have an owner's manual, and I tried to reconfigure it the way it was designed.
Two hoses were meant to hang on the side of the trailer permanently, so you could fill the water supply tank on the roof without needing a ladder. They were coupled together at the bottom, until you needed to fill the tank. You uncoupled the hoses and connected a garden hose to one, and turned it on. When the overflow came down the other hose, the tank was full, and you disconnected the water supply from the garden hose and re-connected the two hanging hoses back together.
If you didn't want to leave the tank on the roof full, you had to drain it inside.
Here I rigged a clear hose to the drain fitting to run the water into the kitchen sink.
It was a very messy system and leaked water everywhere. I couldn't get the pump to work right, and was constantly up on a ladder fiddling with it.
After a while, I stopped trying to put water in it and just ran the fan. That had 2 speeds, and only one direction.
I finally pulled it off the roof and replaced it with a Fantastic-Fan.