When using my Taylor test kit to test my CH the instructions say if CH is present the water will turn red. My water does not turn "red" it turns a VERY light pink. Performing the next step of the test where the water should turn blue it turns a purplish color then a VERY light blue. It's almost hard to tell there's any color in the water be it red or blue. Is this normal?

I this test and the CYA test to be the most subjective of all the tests. The black dot "disappearing" is not cut and dry by any means. If I try really hard to make out the dot and I can does that mean the test is not complete? Should I literally not even know there's a dot there?