When I went to Home Depot this time they only had 100 lb bags of sand for $10. That is plenty to do ends caps and a firebox, probably several grills worth.I am curious about the amount of time and sand needed to do this. Can I do 2 end caps and a firebox with a couple of bags of sand
in an hour with no recovery system? Will it take 20 bags and all day? Somewhere in the middle?
However the time would be the killer. I'd say it realistically took me 1 hour to do the end caps. Buts it's not an easy or pleasant hour. My guess is the firebox alone would be 2 hours+. Most powder coating places also do sand blasting, if I ever had a need to do the firebox I would just take it there. It would be the best $50 you ever spent.