What I meant is the tank with the issue was offline when I fixed it. The good tank is online and still has lots of soft gallons left. I'm just waiting for the good tank to deplete, then it will switch to the tank I just fixed. At that point I can see if the tank I fixed is actually counting down. I would have done a manual regen to force it to the fixed tank, but online tank still had 8k gallons left, so didn't want to waste the salt.
What I had been doing the past month is watching the tanks and when the non-counting tank went online, I would let it run for a couple days then do a manual regen to switch back to the tank that counts. That way I don't end up using hard water without knowing it since meter was not counting down.
Issue I am talking about is that the tank not counting down has been showing hard water every time I test it. Last week I caught it right when it went online. Tested and water was hard. Waited for a few cars and tested, still hard. Tested again after an hour, still hard. I do believe the messed something up with the resin when they rebed this tank. Issue is that since it was not counting down, it was hard to prove since head always showed max gallons left. Not that it should count, I can say that "it's only used 100 gallons and the water is hard" and they can't say well you probably ran it too long and the soft water was used up. Hope this all makes sense.