Richard,

I should have added baking soda to bring the TA up to 100 ppm, so you are correct again. Bear in mind that this information came from most of their customers, presumably plasterers. (See the Diamond Brite installation manual in the PDF below.)

I do know that the CH will rise when curing, as this was my experience the first time i used Diamond Brite, but am not sure about the TA going up. I do think that by keeping the Ca(CO3)² and pH down it would help more in the curing process. Just a theory of mine.

I agree that a flow chart would be nice, but feel many poolowners are more interested in swimming, rather than the mechanics of plaster curing. So it would be available to the dedicated few like ourselves, but can we tell new pool owners having plaster pools under construction what the experiences we have been having.

Pat

http://sgm.cc/download/installationm...amondBrite.pdf