sfsuphysics
Supporting Member
Just decided to pull the trigger and get Leslie's Hardness Plus,  it's 94-97% Calcium Chloride, about as pure as you're going to get, (Dowflake is only 77-80% calcium chloride btw).    There are lots of local stores,  http://leslies.know-where.com/leslies/  and best of all it's cheap!  Well ok, not as cheap as Dowflake is per 50# bag, but then again if you can get that locally... good luck!   A 15# bucket of the stuff ended up costing me $30,  they sell 45# buckets for twice that.    Now you might say "well buckeyefield..." has it for $12 ... read the fine print, that's 16 cups worth, that's only about 7 pounds worth.. but don't forget the shipping charges..  figure it'll be at least $20 when you're said and done,  not to mention the hardness plus is ~20% Calcium Chloride per pound!   
Anyways, just a heads up in case you're like me and needing a quick calcium fix without wanting to spend $15 on a small bottle of Kent's Liquid Calcium or something.
				
			Anyways, just a heads up in case you're like me and needing a quick calcium fix without wanting to spend $15 on a small bottle of Kent's Liquid Calcium or something.
				