Houston
…. We have problem . I just did a CYA test because we vacuum to waste a few times last couple weeks . I filled the pool water up to the 7 ml line , then I topped with the cya regent to the 14 ml line. Shook it for 40 seconds … started pouring it in and by the time it was about to overflow , I could still make out the black dot. Could we have got rid of that much CYA ? Or did I mess this test up by what instructions I just gave. 

