Does anyone know if they managed to get a 70% Phosphoric acid...

Does anyone know if they managed to get a 70% Phosphoric acid concentration from the first experimental kiln that they made?

If they did, then - with the wisdom of hindsight, maybe what they should have done was to build a kiln say 4 times the size of the original "working" kiln and played around with that.

I reckon ,if they used a smaller plant, it would have been far cheaper (and faster?) to learn exactly what adjustments have to be made when "up-sizing".

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Another thing that worries me is that Cliff hasn't been buying any shares lately....