That's never happened to me w/ sucanat before Deja ,
Does your sys. recirculate ? If I remenber right you do have tonsa air already so that isn't the problem .

When I add it I put in 1tsp. per gallon of water , I take 1 gal. of hot water in a milk jug and add the sucanat to it and shake the hell out of it so it's way disolved right from the start .

How do you mix it up?

Peace bro.
Crispi :stoned: