Alk consumption in my recently setup reef is constantly on the move. As a result I am testing alkalinity a lot, almost daily to keep my dosers tuned. I have been using salifert for a test kit and they are cheap, like $13 for refills on amazon that last a couple months. But I am getting tired of inconsistencies. There are so many variables (The biggest issue usually being the syringe) that can throw off the reading and I am finding myself testing 2 sometimes 3 times because I get a strange off the wall reading. I really want something easier and more consistent. How are the inconsistencies with the hanna? Is it easy to mess up the results by user error? is 25 tests per regent pretty accurate?