Bulk is really the only ecological way to buy cleaning products as long as the bulk containers themselves are re-used again and again. In their response in their catalog, they went on to tell about the evils of chlorine. Bio Pac feels that the household use of chlorine does not harm the environment unless it is used excessively. It's the industrial use of chlorine where millions of gallons are used in the pulp industry where chlorine creates havoc. This is because much of the chlorine remains unreacted in the discharge.
Unreacted chlorine is very harmful to the environment.
However, at home, little, if any chlorine even makes it to the end of your drain system as it becomes completely oxidized if used properly. It has been common in the green cleaning business to take a real problem, i.e. chlorine in the paper and pulp industry, and apply it incorrectly to a different use, i.e. chlorine in the home. Also, due to its strong oxidizing nature, it can ruin clothing in a hurry. We like hydrogen peroxide much better for these reasons, but not because we think we are saving the environment. The evils of phosphates have been given much press.