theanimalman;3495485; said:I've haven't used t or s grade. Its too expensive to get any where I'm at.
I use Estes Medium Broadcast. Its similar to the S grade. You can find it in any wholesale or large paint supply store. I pay $24 for 50 lb bags. It comes in about 16 or so colors. Its very heavy sand. You can use a gravel siphon to clean it just fine.