I use titanium slag which is pretty similar, it takes a long time to wash but works quite nicely thereafter
Thanks for the suggestions. I did make sure to get the coarser of the 2 they had. The other one was a super fine grit.Also make sure you get the coarse grit. Tractor supply carrys two grits and I always forget which is which. But the finer grit may not sink as easily.
I would do it before you rinse it. I think you would catch more metal when dry. I would especially run a magnet through it if you use magnetic glass cleaner (Mag-Float) to clean glass, that way you wont pick up any metal pieces and scratch things up.Have others had issues with the metal pieces? Should I run a magnetic through the sand after rinsing?