Would it hurt anything if I tried pouring some drain unclogger like Liquid Plumber in my washing machine drain pipe? It keeps overflowing, but I don't want to create a bigger problem.

Would it hurt anything if I tried pouring some drain unclogger like Liquid Plumber in my washing machine drain pipe? It keeps overflowing, but I don't want to create a bigger problem.

It wouldn't hurt but I question how much it will help. Washer clogs consist of fiber matted with grease. I've never had too much luck using Drano or Liquid Plumber on fiber clogs. About the only sure way that I know of to clear a washer clog is to snake out the line from the washers roof vent.
Good luck, Tom