Quote Originally Posted by like2ct View Post
CYA measurement done with ColorQ as K2006 didn't yield any noticeable measurement which might be user error as was first try. After mixing 7ml of pool water and 7ml of the agent and mixing for 30 seconds the mix was clear and not obstructing view to the black dot in the tube.
Actually, the K2006 gave you a definitive measurement: ZERO. You have NO CYA.

If you have access to a Sams Club, you need to get dichlor from them, and chlorinate with that: for every 10 ppm of chlorine added with dichlor, you get 9 ppm of stabilizer. http://pool9.net/sams-dichlor24/

Otherwise, you can check Lowes, Home Depot, or Ace Hardware for dichlor showing 56% available chlorine (NOT: 56% dichlor!). Most of the dichlor sold today is diluted.

Until you have some CYA in your pool, the only meaningful measurement of chlorine loss is from late evening to early morning: daytime loss under full sun would be expected to complete, regardless of chlorine level.