I run a sand pan instead of a water pan. I had set up a run of jerky and the smoker was running a bit odd. Typically very easy to regulate but this time I just didn't have the typical finite control. I was able to slow it down for a bit by shutting everything off a couple of times but it wouldn't hold. I left for a few beers, came back and it was running at 225 as it had been for most of the run. I over did the jerky. When I took the smoker apart I discovered the sand pan had fallen down on top of the fire. No wonder it was running weird. I need to make sure the pan is centered and located securely in the future. With the foil on the way, it isn't as easy to tell. Live and learn.