Thanks watermom. I just tried the edit sig link and it said I don't have that privilege yet. I will try to refrain from giving advice, I definitely don't sell anything, but I would like to add my views of what would be possible diagnoses of others' issues if possible. Like saying that there might be low or no CYA in a pool that eats chlorine overnight is reasonable and typical first-thing-to-check-easily response,.isn't it?