The first time I carried a bag of bintonite my age was 18 my next birthday will be number 62. In 1988 we put lots of the mud on top of a drainage pipe that was under a lake. We knew where the line was and just dumped the stuff on top of it. That stopped the water loss. THAT IS THE ONLY TIME IT WORKED WITHOUT IT BEING INSTALLED PROPELY.
Every other method has been tried. At least once. No good results have ever come from the slurry. Twice customers have had access to a good supply of the slurry; they talked me into letting them try it. No good results
Otto