Hello! Looking for some assistance from some experts! I have an Aquatrol version 1.17 (old I know) I recently purchased an aftermarket cell from Active Pool Supply and I was supposed to get a t-5 since the aquatrol calls for that. I installed it the other day but the system is saying salt at 5300. My strips says it is around 3400, so I went to the local pool place to get them to test and to buy some chemicals. Their test says the salt is 4250, which is still high, but the cell shouldn't cut off at that level like its doing now. Based on some reading, I'm wondering if I got the t-15 that some people says happen. If so, I have read that I need to put a jumper at J4. I found that location on my PCB but I don't know what type of jumper to put in. I don't really want to solder. So my question is, do you think its worth for me to try to jump that part somehow to see if it reads better, or should I upgrade the PCB if applicable? If that is the preferred route, what type of PCB do I need to get? Thanks so much for your advice on jumper and/or PCB.