Where do you buy bulk pickling lime?(Kalkwasser)
 

My tanks demand for kalkwasser is rising. Buckets of TLF kalkwasser is just not economical anymore, and I dont have all the equipment for my calcium reactor yet.

Does anyone know where to buy bulk pickling lime in/around Calgary? Preferably not agricultural because of some rumors that it does not need to pass food grade standards to be sold.