After testing my water in my tray, I realized I had an infestation of bacteria in the soil of some of my pots. The stench was a clear sulfur/rotten egg smell coming from the soil of some pots. Oddly enough all of the soil in these pots is less then a few months old (no more then 5-6 months). I know this is due to sulfur bacteria residing in the soil but my question is; do I need to repot EVERY pot which came in contact with the same water or just the 'bad' pots? And do I need to change out the water? I've already changed out the water twice and repotted all of the pots which I thought were infested but apparently I must have missed 1 or more as the ppm in the water keeps rising. It was at 12ppm this morning after a fresh change and tonight was at 98 ppm. I'm assuming it'll keep rising over night as well.
I flushed the bad pots and tested the water coming from them and results came in at ~398 ppm. Oddly enough none of the plants seem to be declining *yet* (knock on wood) but i'm afraid that I now have to repot every single plant in the tray in order to get rid of this infestation.
I also noticed that the bad pots were only coming from pots which were in a silica sand/peat moss mix while my perlite/peat moss did not have this issue.
Has anyone dealt with this successfully before? Thanks for all the help.