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Update on Slip Mixing Mystery !

I have been busy attending to many different things and so it took a while to get new materials ordered so that I can test our casting slip using a different water supply. As a reminder ( see last pos t) after mixing slip at our location since 1958, recently I was unable to achieve a functioning balance between specific gravity and viscosity. To put it in easy to understand terms. specific gravity is the measure of the water content of the slip and viscosity is the measure of resistance to fluidity. A low specific gravity means there is a high content of water. A low viscosity means that the mixture is very fluid. I was getting an extremely low specific gravity reading such as I have never seen before and an extremely high viscosity. That is like putting enough liquid into a batter to make it like a soup but instead it is like cookie dough. Neither low specific gravity or high viscosity are functional in a ceramic casting slip. After three different batches of slip were attempted