For those of you who don’t take apart your brewpump and clean it post brew, you may want to reconsider. Since purchasing the pump (which incidentally is one of the best buys I’ve made for my brewhouse), i’ve always taken the head off and cleaned the impeller and parts, let them air dry before putting it back together every time. This last brew about a month ago, I just ran PBW cleaning solution through it for a while and then put it away without taking it apart because I was buying a new impeller and knew I would take it apart soon anyway. Well today I just took it apart to put the new impeller on, and there was a bunch of mold growing on the inside. I wouldn’t have had any idea if I hadn’t taken it apart. Probably would’ve been OK running boiling work through it the last 10 minutes of the boil but I still wouldn’t want that stuff in my beer. Just FYI.