"TT" <.> wrote in message ...
>I am considering filling my WSM water pan with sand covered with foil. This
>sounds like a good idea from what I have read, but are there downsides?


>
> 1) If I do this, will it become more difficult to keep the temperature
> down to 250ish?

No, it may even be easier.


>
> 2) Will it be necessary to mop?

It is never necessary to mop. Waste of time, IMO.