How to do with misaligned sink pipes

pipepvcsink

I tried to fix a clogged sink and found the problem was much more complex: I have to replace the sink waste too. And after I installed the newly bought waste, the pipes failed to align.
Vertically misaligned pipe

I think it's because the new waste is a little bit too long, 'pushing' the pipe it's connecting down a little bit further.

I am thinking maybe I can get an extension to fit in between? Or I can cut off a part of the vertical pipe coming from the ground. Problem with the second option is I have to work out how much I need to cut, and what's the best tool for the job.

Are there any other options? Thanks.

Best Answer

This looks all wrong. It looks like you have installed an adjustable P-trap upside down. The upside down "U" shaped piece attached to the pipe coming from the cabinet floor is supposed to be under the sink strainer.

You need a proper tailpiece to attach to the strainer, which will come down into the "tall" end of the "U" shaped piece. The piece you now have attached to the strainer is supposed to be connected to the "short" part of the "U" shaped piece and runs horizontally to the pipe coming from the cabinet floor, where you will need a slip-joint elbow to connect them. Something more like this:

enter image description here

Please do it right and avoid "clamp-on" Fernco type connectors, as some have suggested. They always end up leaking.