Ok, still working on this issue and not having the best of luck---another question for those who chose the tap route. I chatted with Suburban this morning and they had some caution about pushing the tap too deep---apparently there is some type of "bushing or flow tube" at the back of threads (plastic) and it is actually smaller so you do not want to put a tap into it. She also mentioned that if the tap hits against it, you probably did not get all the plastic out?? Was this a concern for anyone?
For those who used the dremel did you use a grinder bit or a wire brush?
thanks,
Still working on it
al