Be sure you don't use beach sand, its a killer. The pounded dust from it can cause baaaad lung problems like the old miners used to get.
Buy packaged, tested media such as garnet, glass or plastic beads from a reputable supplier..

"After you skin yer knuckles, Mr Shifter ain't yer friend any more."

1942 Chevy 3/4 ton
In the Stovebolt Gallery
Photo Site
1946 Chevy 5 window coupe/ute (new stray)
2000 Nissan Patrol 4x4 4.5l turbo diesel