The effluent line of the reactor clogged for a couple of days. It's a recirculating model though so I the pellets kept tumbling and I didn't notice. The entire reactor died, when I opened it, it smelled like a major gas leak had just erupted in my house. I removed the reactor, cleaned it out completely and rinsed pellets in fresh water until they stopped smelling. I then let them stand in fresh water that I replaced a couple of time for several days. During that time I modified the effluent line of the reactor to make it bigger so that it couldn't clog up with biofilm so easily.
When I got it all set back up I used the same pellets, which had no odour of any kind by then. I dosed the reactor with MB7 to get it going again, and it was very rapidly producing mulm again. With the larger effluent line, more water can transit through the reactor now, but it still moves way less water per minute through it than a non-recirculating model would.
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