We are in the process of starting up a pool for the first time, and I
just ran across a deal on chlorine tablets that I thought was too good
to pass up.. 37.5 lbs. for $47.00. They had ten pails, so I bought
them all. I'm not sure how much I'm going to use this summer.. I
hope this'll be enough to last through a few years at least! I'm
wondering though, do these tablets lose effectiveness over time in any
measurable quantity?