Why not use liquid chorine instead of bleach ?

[giroup01]

Liquid chlorine does not exist in nature, and the only way to get it is to compress and deep chill to liquefy it. It will only remain a liquid under pressure and low temperature. When exposed to normal pressures and temperatures it will quickly flash off to a greenish yellow gas. If you were hanging around liquid chlorine without a respirator you would most likely now be in a hospital with chemical pneumonia, unless you were already dead.

Yup, you're so right.

But then I always see people going for the trichlor instead of the cal hypo/bleach/whatever because it says "90% available chlorine" on the label. Good marketing eh?