Just look at the drain as a fresh start. You can test and adjust your pH yourself, the Red Phenol test you have is the same as any of us use so that will be accurate. You can get a CYA test in less expensive kits, but if your shock level is 20+ (it probably will be) how are you going to measure that? During the SLAM process you need to be able to test levels that high several times a day. An FAS/DPD kit is the only test you can get accurate results at those levels.
I was going to post how to SLAM blind, but truthfully there are so many variables and it is going to probably cause you to use way too much bleach and get way higher FC levels than you should I just don't feel comfortable posting it. I have done it, it worked, but it took far longer than when I do it now using the proper test kit.
Let's just get the drain out of the way and get new test results and as a group figure out a game plan from here.
I was going to post how to SLAM blind, but truthfully there are so many variables and it is going to probably cause you to use way too much bleach and get way higher FC levels than you should I just don't feel comfortable posting it. I have done it, it worked, but it took far longer than when I do it now using the proper test kit.
Let's just get the drain out of the way and get new test results and as a group figure out a game plan from here.