PLEASE be very careful with cal hypo storage. Just a spill of soda or motor oil mixing with it will ignite the cal hypo. Keep it isolated and DRY, out of any possibility if anything mixing with it.

I saw a pool distributor burn down because a guy on a forklift drove over a busted open 1 lb bag, and an oil drip ignited the cal hypo. You cannot add water to put it out!

Biolab, a more recognizable name in the pool industry, burned their GA facility down a few years ago.
http://findarticles.com/p/articles/m...4/ai_n13797497