It's simply your water temps, ph of 6.8-7.0 is fine also.
After bleach then run hot water through it, get all the bleach out.
Your misters should never get clogged if everything is kept clean.
Thanks so much for all this info. I just made a rookie mistake, and I’m freakin’ 25 years NOT a rookie. Just had an enormous slime build up in my rez in just 6 days. Clones were fine, green, stable just 3 days in but went to see a few days later and clones were all wilted, still green tho. I started using a FOOP cloning gel which works well. However, having a couple tablespoons of my old Clonex solution, like a complete idiot, I poured it in my rez. Wrong, wrong, wrong thing to do. Just left from cleaning it completely out and pump is working again. I thought I had burned up the lil pump because it wouldn’t hold pressure once built. And it sounded like there was a rod knocking in it . I immediately re dipped my clones in FOOP and put in Happy Frog soil under constant light. However, after I started cleaning everything and disassembled the pump, header, and tips and cleaned. Along with the rez. Once I hit pump to working I had two clones left in top of cloner so I re dipped those and stated the cloner back up. Jeez, what an evening. I likely just killed all my clones which is really gonna suck. 12th generation Marza I Shariff and 12th generation Blue dream. About 2 years work. I hope not. I’m going back tomorrow and apply what I’m learning in this thread. Thanks again mate.
Charlie