I think maybe I confused the container sanitizing instructions with the water storage instructions. <img src="/images/graemlins/shocked.gif" alt="" />

I'll go with 1/2 tsp. per 5 gallons from now on. Even that might seem a little heavy on the chlorine side but this stuff is stored in an unheated/uncooled trailer in temps ranging from 0 to +100 degrees F. for 6 months at a time.

Regards, Vince