Just a few years ago it was no problem finding potassium nitrate in local stores sold as stump remover. But this week it's not so easy.
The big orange home building supply store no longer has it, nor does thier competition with the Blue store, but the blue store web site says they have it but once in the store they dont have any, nor Ace hardware or even the farmers coop.
what is going on? seems the only way to get some is to buy online. the prices shown online is very good though compared to spectracide stump remover in a bottle thats probably like a pint. where do you get your potassium nitrate?