Here's my plan;
Run the vinegar mix once (25% Vinegar, 75% Hot Water)
Run distilled a couple more times until vinegar smell is gone
Disassemble loop
Rad dance (fill with hot tap water and shake like hell) first with hot a few times, then finish with distilled
Take apart reservoir and check pump for any contaminents
Double check rest of loop
Put back together
Run hot tap water a few times
Run distilled water
Drain/refill the distilled distilled water once more
Add Biocide Additive
Call it a day