KH is 16 in new saltwater mix?

[Lampshade]

I made up a mix of IO I bought on boxing day, 16DKH. I've been trying to bring mine down, and had my calcium reactor off, test my water at 14ish, do a water change, the next day test at still 14. It was getting frustrating wondering how my tank wasn't bringing it down. Well, after this thread tested a new IO mix, now I know why. Thanks for posting, now I know why i have alk burn on a lot of SPS. My calcium is still high with the DKH, so it seems that the 2 are still balanced in the IO mix, just way too high.

Also, API test kit showed 7DKH the whole time. Took some water into OC and he tested higher, so bought a new salifert test kit that showed 14-16 in my tank. API test right beside it showed 7.

I have to stop "saving" money on my tank, it's getting expensive.