Hi - I want to test my CYA and was going to buy these products below. Do I need anything else or is this ok. I do have the taylor liquid red & yellow tests for PH and Chlorine. Are these ok?
Also, I was quite confused how you actually test it with the black dot??
And lastly, can stabilizer go bad? About 3 years ago I bought some stabilizer & conditioner and have been keeping it exclusively in my shed. This year my chlorine is almost always low. It hasn't even been hot yet in the northeast. Maybe I didn't add enough but I was wondering if it can go bad