Zelmo WAIT WAIT WAIT!!!!

I am not saying you should run out an buy lime, I am asking why not use it as a cheaper source of calcium. I don't know off hand if it would be a problem or not, but I would think it would work quite well. I suggest you wait till someone that knows replies before you run off and possibly screw up your pool if this is the wrong way to go. I cannot see why it would be a bad additive, but lets wait and see.