Caldera “fresh water salt system” effected by high phosphate levels

Phosphate reducer is usually lanthanum, which causes a precipitate of lanthanum carbonate and lanthanum phosphate.

It’s possible that some of the precipitate has adhered to the cell plates as scale, which can reduce the production of chlorine and cause the salinity to read lower due to lower current draw to the cell.

However, that’s just speculation and not established fact.
 
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