The studio where I work collects everyone's throwing slop in large garbage barrels to reclaim into clay for youth programming and drop-ins. The clay is feeling like it's met its limit in terms of reclaim cycles and the kids are finding the clay impossible to work with. The clay is very fibrous, tears easily and lacks elasticity.
I'm thinking about adding dry ball clay and vinegar to the mother barrels to bring the dead clay back to life. Will this work? Is it worth my time? How much of each to add? Should I add something different?
I'm fearful that mixing in ball clay will throw the chemical composition way off and will leave us with clay that doesn't fit our glazes. The current reclaim is a mix of four ^6 Laguna bodies (90, 66, 55 and 16) and lots of the cyclically recyled clay.
Any help will be greatly appreciated.