Thanks for all the help thus far everybody.
Just wanted to say a few things.
I was very careful cleaning the rads first time with vinegar and distilled solution, probably shook each about 6 times. I've never run the pump dry, however, when filling the loop I may have shut off the pump "too late" meaning the pump was still spinning for a few seconds after the res had emptied.
Lastly, it turns out aquacomputer double protect uses ethylene glycol, which is a no go with primochill advanced LRT tubing. Apparently it will cause the tubing to break down. Looking at mayhems X1, they use ethelyne glycerol, which is apparently fine with LRT tubing.
Unfortunately, I couldn't find mayhems X1 anywhere, so I bought Corsair HydroX XL5 clear fluid instead, which is apparently a clone of Mayhems X1.
Wish me luck on the rebuild...