Yes, hold the BCG for 2 hours, that was easy. Literally less than 10 minutes at the Dr's office, very easy, catheter in, BCG in, catheter out, done, and headed home. As to the clorox, because i have a septic system, I was concerned about the long term effects it may have on my septic's health. So, I did a bunch of research. I decided to minimize the clorox. I have a private bathroom all to myself, so all voiding was done there. I used about a cup of clorox and didn't flush till the end of the 6 hours post BCG. My take on the clorox is that it has been a long standing practice that was put in place to protect the manufacturer from law suits. I don't believe there has ever been any case of someone getting tuberculosis from BCG treatments. Yes, it is wise to be cautious with good personal hygiene. Your situation may be different, so take my words for what they are worth. I am not a doctor or scientist.