Disinfected and cleaned the cooler like we always do every couple bottles. Just replaced the first bottle after cleaning and noticed black marks inside the bottle. Did not look right, so we run the cleaning solution thru the cooler. It come out with BLACK crap, took the top off the cooler and it was like pettie dish. Never before have we had any visible problems. Wife has been sick for awhile and would get better and than worse again. We final put two and two together she would get better when she drank 7 up while sick and than got sick again when she filled her water bottle for work. ( I don't drink straight water I make ice tea using tap water.) The cooler is trashed, what every was in there discolored the plastic. The cooler is going on the curb. Best guess Primo did a super *** job washing & disinfecting this bottle before refilling it.