Disinfectant 2.5 acid water Nov 15, 2010 12:20:14 GMT -5 Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by ed on Nov 15, 2010 12:20:14 GMT -5 It is my understanding the acid water needs to be lower than 2.6 in order to kill all germs and bacteria. I use it mainly on my kitchen counters and bathrooms.