Just washed the pebbles off. It's amazing how much red dust came off into the water, andf the salty crap that was left. Got them soaking over night in the tank. I think I'll run the system, drip ring and all, for a couple of days with just water. Flush everything out. Has anyone used the setup I'm using before? Latewood, did you use a drip ring? Love to hear if anyone has.
All the best.
(can't wait til I create some 'natural' medicine for the 'ol arthritis!)