I searched the form, but got so many results that weren't relevant - I have to say my search wasn't very good.
I'm a homeowner, not a plumber. Though, I did successfully install the greensand filter myself.
I have a greensand filter, have had it a little over 1 year. The tank has a Fleck 2510 on it.
Cleaning the little potassium permanganate tank was suggested as annual maintenance (what a messy job), but I did clean everything up and scraped the crud out and put it all back together again.
Recently, I noticed a little of the rotten egg odor, but not very much. I checked the greensand filter and it does not appear to be drawing in any pot/perm. I did a manual start and watched it run for a while, checking every 15 minutes to see if the level in the small tank went down. It didn't change at all.
I took the top of the injector housing off and took the injector nozzles and screen out and cleaned them. They weren't plugged at all. I scraped a little iron film off of them, but they looked good (to my non-professional eyes).
I manually rotated the knob to go through the cycles (though I don't know what the cycles are), but didn't really know what to look at.
I'm not sure what position the blue or black thing should be in to cause the pot/perm to be sucked in.
Can anyone help?