Plumber

Did you clean out the trap and other pipes in the sink cabinet? The usually come apart without any tools.

yep, maybe it is a little better but we need a permanent solution to a weird pipe situation.

Sounds like roots in the line. Did Sewer Snake run a camera down?

can you change the direction of the pipes so this does not happen again

No, its not roots.
Speedy1dy, what do you mean by "change the direction of the pipes so this does not happen again" ?

can you change the direction of the pipes so this does not happen again

Is that like checking the back-flow respirator flange??

Can't really propose a solution until you know what the problem is. Is it completely clogged or really slow to drain or just slow to drain? If it's a recurring problem then could be a combination of gunk buildup over the years and then something else completing the clog.
Like clogged arteries and a blood clot. Maybe need to run a snake through that cleans the inside walls of the pipes, not just clears the clog. I had a similar problem in only about 12 inches of almost horizontal run from the sink trap. Was not clogged, just slow to drain. Ran something like a large bottle brush strapped to the end of my snake in and out several times. Problem solved.

Thanks for the input everyone. I bought a 50' power auger, problem solved !
Again, thanks for the input.