I think they are 99% trichlor. Please check the label. If I am right, they are fine to use as long as your CYA is not too high. Since they are stabilized, they will add CYA along with chlorine. Do you have a current CYA reading for your water? Actually, it would probably be a good idea to post a complete set of current water testing results taken with a drops-based kit -- no test strips. Do you have a kit? What type?
Bookmarks