One good reason not to use chlorine bleach in your bee syrup. Bees are drawn to swimming pools is because they've associated the smell of chlorine with water. Once they've made that association they will pass any number of good water sources and go to pools...just because they're easy to find by smell. If you add chlorine bleach to your syrup....guess what? They're gonna associate the smell of chlorine with food....and if you think water foragers at your neighbors' pool are a problem just wait until all the foragers go for it.Here in FL, bees drink water in swimming pools all the time. I've received complaints about it. I vote for the bleach fix.