I have been using the TFP app for a while and today I tested my CYA and it has gone down to 70. Now I input the new number into my FC table to get my chlorine addition. The next time I went back into the app my CYA number was back up to 80. How do I keep the new data in? Also how do I reset the maintenance times? It always says I need scrubbing and backwashing. Sorry, guess I'm not app literate.