Who do you order from, if you don't mind my asking?You're welcome Canna. I used to buy the powder, but it was nearly impossible to mix, even with the potassium silicate added. When I ordered last time they sent me flakes. I think Jeremy may have changed suppliers because they probably got lots of complaints. I never worried about it myself because clumps or dissolved it was all going into the soil and from there on out it was managed by the biota.