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The bathhouse will be situated with the slanted roof facing south, for sun exposure on the passive solar water heating system.
This is pre' close to what I want. I like the deck base for easy access to the plumbing. It'll sit on a bed of crushed rock, and on cement pillars. I want to wrap the showers and toilets in an outer wall, but I like keeping the sink outside. And add a workbench to the sink area.
Edit: I'm getting together the plan for this.
Mike firmly doesn't want to put in a large septic system for this project. He is ok with an outhouse, but I'd like to upgrade the outhouse with a 55-gallon septic tank system with a black water and grey water drainage field. Both the black water and grey water septics can use this system, each on its own separate system.
The bathhouse needs to be located on a slight rise. A sand-point can be driven in the opposite side the the sewer pipes leave the building. Holy wah, a good hand pump costs over $1k. I think we'll settle for a cheaper cast iron one for now.
Here's a a video that shows how to pound in a sand point well, including a parts list.
The well needs to be at least 50 feet from the septic tank, so we'll need extra sewer line for that.
This is an instructable for constructing a roof top solar hot water system out of ABS pipe.
The deck for this building would be 8'x 12'; two toilets, one shower, one stainless steel sink. The deck would need to sit on piers, according to this plan, 15 piers.
this is How to Construct a Small Septic System (wiki)
parts/supplies:
two 55 gallon plastic drums
two 4" toilet flanges
ABS pipe - straight
three ABS pipe - 90 degree pieces
ABS Y-bend
leach pipe
pipe glue
My belly laugh for the day:
Question: How much water do you fill it (the first tank) with?
Community Answer: The key word is "fill." Continue to place water into the drum until the level no longer increases.