I tried the bleach today, and it smells as good as a swimming pool now. So, that's good. The only thing I'm not sure what to do about is the BC bladder. I poured two pitchers of diluted bleach water in it, let it sit, rinsed, filled with clean water, let it sit, rinsed, filled again with clean water, rinsed, and now it smells slightly better. I'm worried though that I can still smell a moldy smell, so that probably means I'm not getting all of it.