So, I am a new homeowner and have been working on getting my pool looking good. I have been reading a lot on here and have started a Acid bath to remove some scaling and stains in my plaster. My pool CH from what I could tell from my Taylor 2005 test was at 1200 so I am trying to find a way to lower my CH after the acid bath is over. I just tested my hose water and the CH there is 600. Is it better to drain and fill with the 600 CH water or is there a chemical way to lower the CH? Thanks in advance for any help.