Central air conditioning system was installed about 18 months ago.
While under my house today (crawl space) I noticed that the drain for
the a/c is connected to the drain pipe for the washing machine. We
recently got a new washing machine that must have a stronger pump than
the old one because now water from the washer is going back up the a/c
drain tube. Can the drain from the a/c be disconnected from the
washer drain pipe (use a plug on the pipe) and have the a/c drain onto
the ground in the crawl space?