Increase the flow rate a bit, & check it for NO3 & NO2 the next day. the reactor need's time to catch up, after any adjustment to the flow rate.
You should see a drop in the NO3 rate from the reactor output, usually to O ppm. a slight NO2 reading may register, if so you can reduce the flow rate slightly until the NO2 is at O ppm. My NO2 was so low, I just let it cycle through the system. check the very first post in this thread, for more info on this.
I have had virtually no gas build up in my reactor, but that may be due to the different design I used (Phos Ban Reactor)
Patience, the correct amount of media, & monitoring the flow rate, will eventually get it dialed in.
I recently cleaned & re started mine after a 7 ~ 8 month run with no problem's. I added a second reactor just for the aragonite, so I can change it, without disturbing the sulphur media.
I recommend a small foam filter on the input line to the reactor. I found very little debris in the sulphur media when cleaning it, so the foam filter worked well.
these reactor's will affect your Ph & Alk. over long term use, it is important to monitor & adjust them accordingly.
Good luck & hang in there
Steve
:smokin:
