Hi Carl,

Thanks for your response.

CH was sitting at 290 the last time I checked and that was about a month ago. My CYA has been around 60 but at one point I did accidently put too much in and it got up to 90. I did some draining and now it's sitting at 60. Would those factors make a difference?

I'm not sure what SWCG is but I do know that we have chlorine tab reserve that we put 3 inch chlorine tabs in and then use the dial to control how much we want to enter the pool (1-4 dial).

So are you saying to add the 74 ounces of muriatic acid and not do anything with the Alkalinty and just see what happens?