Should I wait a day, a few days, a week? I was at 35 and want to bring it up to 70. It called for 70 oz of CYA, I only put 40 oz and it's been a few days. Was waiting to retest it and then add more from there if need be.
There's actually been a lot of discussion and some testing done by moderators, experts and guides on this issue. The legacy guideline on this has been wait up to a week after it has dissolved to retest CYA. Some have been able to measure CYA almost immediately after it has all dissolved. Others have issues measuring for several days or longer after it has dissolved. The variables are water temperature, how the CYA is added (sock near return, sock in skimmer, dump in skimmer) and perhaps others that aren't easily seen.
How did you add yours? It certainly doesn't hurt to retest after a few days but there is currently no change to the guideline to wait about a week before retesting, afaik.
That's great that it worked for you, but what we post gets read by lots of people, not just the original poster. Our answers should apply as much as possible to all people. There are reasons we suggest what we suggest.Keeping it in a "sock" could make it take longer to dissolve ? It seems pretty obvious to me that if you have an undissolved "lump" hanging around, it's not going to register fully no matter how long you have waited.
I followed the instructions on the (Clorox) container, and it registered as expected right away (the next day).