Green Pool (Was black at first)

[PoolDoc]

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.

[like2ct]

Updated my numbers for today.

Have 50lbs of the Dichlor with the 56% available chlorine. Not entirely sure how much to add though. Do I build it up slowly?

Used some pool calculators and it looks like 9oz yields around 1 PPM of FC and 0.9 CYA. Looks my goal is 40 CYA.

Will start with 72oz as it's easier to add as I think that I need a lot more. Current FC is 8.28.

[PoolDoc]

Yes, slowly.

Basically, simply use it to chlorinate, till your CYA is at your target level.

You'll find that initially (while CYA is low) you'll lose chlorine quickly. But as the CYA increases, chlorine levels will be more persistent.

[like2ct]

Added today's numbers. Didn't measure CYA as I understand below 30 no way to measure with my tools, my best guess based on FC level is around 9 as my FC went from 8 to 18 ppm (Had overcast and no sun).

Will add another 72oz of dichlor. Water still light green. Can see bottom. Not filtering just circulating and aerating.

[PoolDoc]

Until your CYA is higher, add your large doses late in the day, so they can work all night before being hit by sun.