CH Test Question

[DONNIE]

I do not have a cover by the way. As far as the red specks, they are exactly that. When it first starts from red to blue they appear. I have even added as much as 3 more drops with no further change to blue but the red specks remain.

From a search:

"One other thing-was this an error on my part or is this supposed to happen? When testing the Cal, there was a precipitate the same color as the water, just darker, swirling around the test container."
"This is normal. The first reagent in this test causes the magnesium in the water to precipitate out as magnesium hydroxide so you can get an accurate calcium hardness reading. The purple specks you are seing in the water is the magnesium hydroxide. The color of the water should be a definite blue. If it is still purple then you have not reached endpoint on this test. Keep adding drops and swirling until you get no more color change on adding a drop and don't count that last drop."

"Re- calcium hardness test. You win this one, the test is not complete until the color change is permanent. Those little purple specks in the water aren't the endpoint, you may have to add 10+ more drops to get the entire sample to change to the end color (the higher the reading, the more 'in between' drops there are - for both CH and TA)"

Donnie