this instructable is a guide to create an outdoor shower and batch solar water heater
Step 1: Preparing the Site
This particular shower occupies a 5.5' x 5.5' area. The deck of the shower itself is more like 4.5' x 4.5'. Once you select the size and a space that will accommodate, you can begin to prepare the area. Rather than building a drainage system to carry the water elsewhere, I dug a hole about 2' deep in the 5.5' x 5.5' area which I would fill with large gravel later in order for the water to drain clean. The water permeates the large gravel instead of building up, or worse, building up in one area and causing the wood to rot.
So, find your spot, on the side of your existing structure (or not), and dig. Here in San Marcos, TX my backyard is a rock farm, so it was very interesting getting this hole dug. I attempted to dig a nice square with a level bottom. This is where the chassis which holds the poles will sit.
1 Select Location
2 Dig 5'x5'x2' pit
3 Build square chassis from 2x4s to fit in the base of the pit