Sorry to sidetrack back to plants for a second, but I think I may have found the underlying issue to my sludge problem that popped up.
I had some 3/4" uniseals sitting around, so I used those to hold the supply pipes into the buckets. Well, yeah, two of them were letting light in. Now the system light wasn't on (on occasion I would pop it on at like 15% when I was working in there) but I did have the tent open a lot, and the lights on in the room.
I think that may have been enough to do it. Wasn't a lot of light, but it was still light.
Amen to that. I'm the same work setup, and it bugs the shit out of me. Why can't people leave you well enough alone?
Junk in the mailbox, junk call on the phone, junk in the email, junk on the cell phone, and junk on the door.
Junk, junk, junk junk junk.
They gonna get "junk" alright. Right in the kisser.