No you're right I did not mention - Got chlorine up to 15 for two nights but in AM it was never higher than 5 (one day it was 3). I will do better I am sure. I was encouraged to be able to make out the liner yesterday AM, and it was clearer again today. Between you, the 9 month old puppy and my dad with his blue bottle I have to stay on my toes. Thanks very much, I am listening, really.