Basic Plumbing Question

[DanSTL]

Hi, recently bought a 2009 2720QB and have a small dribble leak from under the kitchen and bathroom faucet. I have narrowed both leaks to the pipes under each faucet, but have a couple of basic questions I could use help with.

1. Does the below sound like I have a clog somewhere between the kitchen and bath?


Water drains fine, but seems to back up to just beneath the kitchen and bath drain, then leaks from the junction where my finger points (2 pics).

Also note the red line is the where I think the max water line should sit (in the P trap) but it's sitting way higher up near the kitchen drain.


2. Where can I buy the right drain pipes for the TM?

I attempted to pickup replacement 1 1/2 inch pipes at my local Ace hardware but the threads to not appear to match up. The TM pipes also have a strange notch I haven't seen before in conventional drain pipes, so I ended up siliconing the old pipes and hoping that would stop the leaks, which didn't work.

Thanks in advance!