> I use the larger Brinkmann charcoal pan in my WSM, filled with sand and
> covered with foil. Never needs to be refilled. Just change foil after
each
> cook.
>

Replace the existing with a larger charcoal pan? Interesting.

I read on homebbq.com the following:

"Many have started using sand in place of water which will actually help in
the fuel efficiency of your smoker. Keep in mind that it is very easy to
burn up a piece of meat using sand in place of water, and you should know
your smoker before you try this."

Sand not buffer the heat as well as water?