I generally add Metal gone when i fill the tub, then add the N2 a few days later. I forgot to do the metal gone this time, and the N2 is already in there. Also, forgot to check Ca before N2.
I assume that it is too late to add Metal gone without interfering with the N2 and creating some sort of problem?
My Ca level is only 60. Can I add Ca to the water without messing up the N2?
I only add Metal gone "to be safe" as my water is sometimes hard, so I assume there are other minerals than Ca present. With a low Ca, though, I'm a bit worried.
I'd hate to sacrifice the N2 unit, but if I have to, I'll dump and start over. That would sort of stink, but.......