orangetrader wrote:
My laundry drain has a problem,

SNIP

I don't like either solution. Now the laundry drain is in the garage, along
the wall between my kitchen and garage. What I am thinking is, the kitchen
sink has a drain, and it is along the exterior wall that is 6 feet from the
laundry line. Can I not work a line inside that common interior wall - have
to probably cut holes through a few studs, and once it reaches the exterior
wall, I can bent the pipe and then lead it to the kitchen drain. There is a
garbage disposal there, if I can figure out a way to tie them together, can
I not drain through the kitchen sink drain instead?

Is there any major problem with doing this and leave the other line just
abandoned?

You *might* get away with it. Depends on the actual size of the
kitchen drain in the wall. If it's 2", I'd try it.

As Scott said, you may have backups (sudsy) in the sink.
You'll have a better chance of success if you install a small
laundry tub in the garage to receive the water, then it will
drain (slowly) into the kitchen drain in the wall.

I'm not convinced that this is a DIY project; there may be
serious venting issues which will need to be solved when the
2 drains are combined.

Jim