16 oz. of stabilizer will add about 8.5ppm of CYA.

The reason I asked about the limits of your pH tester is because if 7.8 is the highest your kit could read and you got 7.8, it could actually be much higher. But, since your kit can read to 8.0, then we know your 7.8 is actually 7.8 which is fine.

Regarding our forum standards, yes, out of courtesy to our members and ourselves, we do run a clean house. We try to be fair, honest and polite and we expect the same in our members. At least one of the Pool Forum staff reads every single post on this forum and generally we all read all of them. Occasionally we have someone come along who uses some inappropriate language or content and we edit it and clean it up and ask them to refrain from doing so again. Generally one request is all it takes, but once in awhile, we have to remove a user who will not abide by what is expected. We want the forum to be a place people enjoying being a part of in their quest to take care of their pools.