The gurgling is because of flooding.
from the description you have given it sounds like he got the wrong coils. Plastic cap on these but he never seen them before, these are shorter then what he had before. He probably had been using / needing these
SKU 1770001 - newer kanger dual coils for protank 3 and others.
Yours are 26.7 mm tall - the others are 29.7 mm tall
Edited on 2/2/2016 at 8:57 PM. Reason:
Try being informed instead of just opinionated.
"Never look down on anybody unless you're helping them up" - Jesse Jackson...(does not apply to douchebags)