What in the HELL is bleach going to do with lead and heavy metals ??? I am ashamed you actually typed that as a fellow human being.
Bleach has antiviral and bacterial properties for storage - you could drink it ( ingest ) without harm if you dilute properly. As I also said in the OP was that no I would not recommend drinking bleach water and licking door handles at your local 7-11 or Walmart.
I am pointing out that everyone has been bashing Trump over the whole OMG he said go chug bleach BS, I am pointing out that it could be used if needed for water or even a mouth rinse and spit if you wanted to clean your mouth out which I have also heard of reasons to do that too.