I've noticed that a lot of pool trucks have the beds completely rusting out on them. So it looks like I am gonna have to buy 2 1/2 gallons at a time and store half of it for a week.

But just thought of something. If I'm keeping the pool at about 3-5 ppm with the TC won't I only have to raise the chlorine about 10-12 ppm using liquid chlorine? So then I would only need a little more then a gallon of the of the 11.5% chlorine weekly? You think it would be ok to assume that I can use a little over a gallon for the first week and then just the rest of the chlorine the second week because it has degraded. I mean i would test it afterwards but I'm thinking it should be close, might not be enough though.