We are working on a project on redesigning the mock-up Space Habitation Laboratory here at the Sasakawa International Center for Space Architecture, College of Architecture, University of Houston. I am looking for a kind of toilet-solution utilising a minimum amount of water (like an aeroplane compressed-air toilet) or none at all (like a camping toilet). The toilet needs to hold the waste of 6 persons for upto a week (aprox. 30 gallons ?); which will be the planned mission simulation duration. Our main problem is not having a lot of space in the original design and we cannot connect the lab to existing sewagelines. We therefore need a solution that will contain the waste for a shorter period of time and then to be emptied in one way or another. I have be playing with the idea of getting hold of a plane-toilet, actually a complete bathroomunit from an outdated commercial airliner, but don't know where to start. Please note that we are looking for a practical, hopefully low-cost solution that not need be similar to that used in high-tech space architecture like the space shuttle (which doesn't work very well anyway :-) ). We are actually going to build this during the 1994 spring. Appreciate any info. Kim Baumann Larsen civil architect MNAL / research assistant Sasakawa International Center for Space Architecture (SICSA) College of Architecture, University of Houston, Houston tel. (713) 743-2350 email: arch2c@menudo.uh.edu fax. (713) 743-2358