Thanks Watermom. Yes ordered the kit and new filters. Waiting for them to come in. My OTO is starting to get a orange to it so I'm sure it is above 5. pH =7.5. I think I will skip tonight but will test to make sure. Could this just be a build up of the used chlorine? I am ready for the K2006 to come in for real. I used those 6 way stick from walmart that I had and it shows the CYA less then 30 but learned it isn't very accurate.