anthony7812 wrote: Alot of unwanted dust occurs on delivery, why not keep that outside.
The coal is usually damp and there is very little dust, most of the dust is created from the bin itself. The coal comes in and it kicks up the dust on the floor or the walls. Take a garden sprayer and wet it down before they start putting coal in. If for any reason the coal isn't damp or not damp enough have a hose ready to wet it down a little in the truck, the nut for example can dry out considerably on long hauls if it's really hot. The rice on the other hand never really dries unless they are getting it from a stock pile and it hasn't rained for weeks, even then it's just a few feet into the pile and it will be damp.