I ditched my Baquacil and switched to BBB in my stand alone hot tub yesterday. Threw out the Baqua-fied filters and got new ones. Cleaned it out real good shot water into all the jets, etc. It's 120gal fiberglass. According to the Bleachcalc I should be using real small quantities of bleach to get it to 5PPM, (1oz.) I have added at least 5oz and it keeps going right back to 0 hours later. Alk was off so I bumped it up. Will get complete test results tonight. But question is, could it be remanents of the Baqua still in the pipes that's killing the CL?

Has anyone who's converted a small hot tub over found BBB to be pretty stable? I am trying to avoid Bromine because I used to use it for years and it seemded to cause occassional rashes.