I have been a reader of this form for several years and have kept my pool in good shape using advice from Ben and others on this forum. So I respect the advice provided here. I have a 27' round AG pool and I use bleach for chlorination. However someone at work recently gave me a 50lb bucket of Sanuril. They no longer use this product and were getting rid of it. Sanuril comes in solid 3" tablets and the active ingredients are,

- CALCIUM HYPOCHLORITE 69.3%
- 2,4-IMIDAZOLIDINEDIONE, 1-BROMO-3-CHLORO-5,5-DIMETHYL- .94%

My question is can I use this in my pool much like you would use Tri-chlor tablets? I do need to raise the calcium level in my pool becasue my tap water is very soft. However I am concerned about the second ingredient. I am not familiar with it and am wondering if it would mess up my pool chemistry or be of any concern to swimmers. Seems like I read somewhere on Pool Solutions that bromine would mess up chlorine based pool chemistry. The second ingredent does have BROMO as a constituent, but at less than 1% I am not sure if it is enought to be concerned about.

I appreciate your advice.

Thanks,
Jim