Start-up with chorine after 2yrs of Baqua-yuck

[PBLsQuad450]

I can't imagine you added enough copper to turn things green that quickly with dual action pucks. From your post it seems like you only used a few. More worrisome is using pucks in your skimmers, I know folks who have caused real hardware problems from "burning out" skimmers. I use Cal-Hypo (73%) to shock on opening. 15 pounds. Gets me to 50ppm. I keep CYA between 60 and 75. I open early (colder) and just don't think about anyone getting in the pool for 10 days at least. I find this the easiest and my CH always stays just fine, I use BBB completely otherwise. I think of shocking just like Z Pack. The nuclear option. I close with 25+ ppm and that CYA, figuring on keeping Cl until the temps drop. My pool has never been better since finding the Pool Forum.

[Watermom]

My pool has never been better since finding the Pool Forum.

That's what we like to hear! Good to see you back on the forum for another season.

[PBLsQuad450]

That's what we like to hear! Good to see you back on the forum for another season.

Glad to be back. Question on that though, I don't see references to joining or anything anymore? I would like to re-subscribe/support PF. Been here a year, and this years start up has cost so little, I promised to share last year so..

[csupp]

Here are test numbers from this morning (Thursday):

FC - 6.5
CC - .5
pH - 7.6
TA - 130
CYA - 0

After a week I still don't have stabilizer registering. I finally had to do a backwash last night, because circulation had slowed down. Heavy load of swimmers and sun over the holiday weekend. To the point where I couldn't get the FC to register on Tuesday evening. Shocked with 5lbs of cal hypo (49%) Tuesday evening. Another heavy load of swimmers Wednesday (kids are out of school), so I shocked again Wednesday night, this time with six 3/4 gallon jugs of 6% (s'what the wife brought home from Target). I'm guessing I need to pick up another bottle of stabilizer and see if I can get it dialed in. Today is cloudy, so I may have a day without swimmers, to get the chemistry right.

[Watermom]

Your stabilizer would be dissolved by now. In a pool this size, 4lbs. of stabilizer should have added about 20ppm of CYA which can't easily be read with the tester. Go ahead and add another 4 lbs. and give it a week to dissolve. That should take you up to about 40ppm or so which would be a good level.