I have a drain 1.5" line with p trap from the kitchen to the exit 2in pipe. There is also a dish washing machine plumbed into the sink drain line.
I am adding a clothing washing machine beside the dish washer and would like to plumb into this line.
SHOULD I add a 2nd dedicated drain line from the clothing washer to the exit down line to sewer OR can I tie into the existing line?
THANKS