I get it at Clear Water Systems in this area as I use it in my sediment filter (sort of a water softener) - it removes some of my INCREDIBLE amount of iron in my well water. There should be a similar outfit wherever you live. It's about $13.00 for 5 lbs. Carolyn (praying for rain in N.E. Ohio) --------------- See http://www.aka.org/AKA/subkillietalk.html to unsubscribe