Back in black, so to speak

I replaced the dripping nipples with stainless steel. Had to order them online.
I replaced the spacers, seals, and piston on the MTM Fleck 7000 tank and that solved the drip from the backwash.
After reassembling I noticed the Pot Perm was not drawing and ended up disassembling and reassembling and cleaning the various components three or four times. Each time I'd clean more/differently. I wish I knew exactly what the problem was, but it's working again, whew!
a) I noticed today I need more calcite/corosex.
b) Also I need to get a new MTM riser tube (might have one) and reseat it as I pulled it out some and cut it off and now I'm sure it's not in ideal position.