OK, all filter media is boiled, the FX5 is running a bleach solution through itself right now (in the sink, just in case I screw something up), and the python and bucket are getting set up for the next step.
I wonder if this'll kill off all the old mildew inside the python tubing. That'd be neat.
The bleach I'm using is outdoor bleach and says nothing about chlorine, but I believe it's the same stuff. It says it rapidly breaks down to saltwater.
I'll probably still over-rinse everything due to my paranoia, but overall this still won't end up being all that much effort.