I have been buying ESV by the 5 gallon bucket. Has anyone run into a problem with inconsistency in the mix? I have noticed switching from one bucket to another I would see some rise and fall of my Alk. I broke into a new pale and my Alk took a nose dive. My reef is a wreck, and I am wondering if others ran into this? I suppose if I am going to make a switch after all these years, now would be the time.