Portable Shower Ideas

Ok I have been doing some research on Portable Showers for Trailers.
I came across some ideas for your disabled trailer.
First is the Solar Roof top air compress one you can make yourself.
Now you would have to figure out how to attached it to the roof of the trailer.
Then to fill it. you would need to figure out something down below, at your level. to add the water and put air into the pipe. (I have to think about that one for right now. I do like the concept and it is cheap to make from the hardware store.)

My Favorite.

                                                             HeoT-Roof Top Shower

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You know the Outside the USA world is far more advanced in helping the disabled than we are. This is my own opinion. When I am doing research on what I like I find these companies that make a terrific product yet they are NOT available in US or it cost a fortune in shipping to get them here. Not to mention "The Customs"!!!
That being said. here is my pick for a portable show INSIDE the trailer. You have to opt for space. however, I would think it would work if you put that in first and then build around those dimensions.

The main reason I picked this one is that it have a ramp, a drain port, and a heated unit and toilet all in one. It also has the helper access on the side.

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Now you can build this cheaper from the hardware stores.

It's the heater unit that will be hard to figure out. 

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The Big Kahuna Portable shower Unit

It runs off of a 12 Volt Lighter socket.

Just Add Hot water.

Ideal for the trailer.

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                                So maybe a Combo of the All Three is the way I would go.

                                                                       The End