I was cleaning my two front ends the other day, and while running hot water through them managed to splash the back end which was sitting nearby to pick out bigger blockages, as just shaking in hot ISO didn't seem to be dislodging some. I dried the back end as thoroughly as possible, let it sit for 36 hours by a fan and tried the hopper. Either I damaged it, it gave up in the week and a half I was dankrupt, or my battery finally gave out. Either way, I'm without a hopper so I initiated an RMA. And since my last battery has been doing 4 and 5 bowls per day for the last month and has been active for at least 6, I don't mind sending it in since I'm still waiting on my charger and three batteries I ordered beginning of December. Thankfully my Crafty, FW4 and VapCap are able to help me through, although I'll miss my hopper till it comes back.