What did you put in your sauce?
I had the slime once, and was able to get rid of it.
Make up a tote with ph'd water + h2o2 (hydrogen peroxide 35%) 5ml/g and dunk the roots, lift it out of the water, dunk the roots, lift it out of the water, do this many times till the brown comes off the roots.
Dump the tote water, refill and do the next net pot.
Drain the UC, add water + bleach .5oz/g, run system, scrub everything you can reach. Drain completely
Fill Uc with new nutes (no organics) + H2o2 @ .5ml/g and continue to add h202 every week.