Originally Posted by
als20
I would suggest vinegar and water,it does a fine job,I use it on mine.They use a mixture of vinegar and water to clean out patients catheter bags in the hospital and long term care settings.Some people use lemon juice.The acidic content will kill alot.of germs.The idea of bleach and water and having the residue floating around in the bladder and hose doesn't sound like a mix a would like to have in my camel back.
I'm notoriously bad about keeping my bottles clean...usually go weeks between washing them, so take this with a train of salt, but vinegar was the first thing that pooed into my mind, too. Safe to ingest and used regularly and successfully to clean lots of other things...