I wanted to say thank you so much for all your help. Not just now and the other times ive asked questions but for all the work youve done. Ive read allot of articles by you lately. Its amazing to have someone of your talents and knowledge there to help out. The hours and hours that you must have spent writing these articles, coming up with these recipes that help so many and answering questions on here is more than I can imagine. I hope you are very rich ! and live a long life ! thank you again!The pH in the sump likely rose more than in the tank, if that's where you measure it.