tailpiece

Hello everyone. I'm in the process of replacing a basket in my kitchen sink, and need to adjust the position of the tailpiece to accommodate the height of the new basket. The problem I'm having is that the tailpiece seems to be quite well stuck in the piping, such that I can't get any movement...

I just replaced a cracked sink in very tight quarters and cannot get the tailpiece to seal against the sink bottom. I applied silicon sealant to the tapered rubber washer that seats against the sink bottom and am certain that the slip nut is tight, but the leak persists. This sink is mounted on...