Quote Originally Posted by Watermom
OK, Ben. Now that I reread his post and your reply, I remember your explanation about cya loss/high cc upon opening. But, my pool always closes with cya (probably around 40) and I always open to none, but no cc reading - at least no more than 0.5. Why is it that the high CC shows up in some pools with cya loss over the winter and not others?
Well, I don't know for sure. But apparently some bacterial processes can take the ammonia and further process that to nitrates. Those will fertilize future algae growth, but not have any impact initially.

Once I've sold 100,000 kits . . . and used some of the profits to build my lab . . . I'll be able to answer some of those sorts of questions.

Meanwhile, I can't, and nobody else seems to want to do so.

Ben
"PoolDoc"