For about 40 years, my family has had a remote log cabin that is only accessible in the summer. During the winter, the cabin is under 20ft of snow. We are only able to visit the cabin about 1 month each year. There is no septic system for a toilet.
Back in the 70's when they built it, they went with a basic outhouse for a toilet. It's an enclosed building with a homemade wood bench-type of toilet that is just a deep hole in the ground (at least it used to be deep...) ;-)
Anyways, I grew up going to this cabin every summer and I'm getting to the age where I am going to be taking over the responsibility of the cabin and it's maintenance. In my opinion the outhouse is past it's prime and a better solution needs to be found.
I've been researching it and I've found 2 other options:
1. The Humanure Toilet - http://humanurehandbook.com/humanure_toilet.html
I'm not sure how well this will work with a family of 10 people visiting for a month. It will have to be emptied constantly...
2. Chemical Compost Toilets -
It seems like a compost toilet would work well, but there is one problem. Lets say it's the last day of our visit. We are going to leave that day and not return for almost a year. If someone goes to the bathroom in the compost toilet, we obviously just can't leave it in there when we leave because no one will be there to rotate the compost bin on a regular basis. Not sure how to deal with this...
So I'm looking for any types of solutions that others have come across and have had any types of experiences with. Something that is safe, family-friendly and easy to maintain is important. Any ideas or opinions about products and what would work best for our situation? Thanks