Hello,
I've tested my CH many, many times. Recently following waterbear's 15-minute method. Although, by the time I'm done with all that swirling I've lost a substantial amount of water. The solution seems to stay in suspension better if you swirl vigorously.
I have not been satisfied that I have a correct result. What is the "blue" end color? Should it match the blue tone of the indicator reagent? It seems like I get to purple. When I took a sample to my local pool supply to have it tested, he stopped when it just turned from pink to purple.
It is a very frustrating test.
I've tested my CH many, many times. Recently following waterbear's 15-minute method. Although, by the time I'm done with all that swirling I've lost a substantial amount of water. The solution seems to stay in suspension better if you swirl vigorously.
I have not been satisfied that I have a correct result. What is the "blue" end color? Should it match the blue tone of the indicator reagent? It seems like I get to purple. When I took a sample to my local pool supply to have it tested, he stopped when it just turned from pink to purple.
It is a very frustrating test.