Ok here's the deal. 16x32 rectangle pool goes from 3' to 6.5'. My akalinity was 160 to start so I added acid to bring Ph down to 7.1 and aerated to bring Ph back up. I have been doing this for a week now. Two days ago I had the alk. Down to 120 but that night I added more
Acid to bring down PH. When I tested alk. The next morning it was back up to 140. Then last night I was at 130 and PH was 7.5 so I added acid and Ph dropped to 7.1 and the alk. Rose again to 157. I'm getting a little frustrated but I'm also confused. How can the PH drop after adding the acid and the alk. Rise? Then in the afternoon the Ph is down and the alk. Is back up 20-30 ppm? Any help with this will be greatly appreciated.