How do you do the plumbing for a washer overlfow pan. Do you run the hose outside your wall or into washer drain

How do you do the plumbing for a washer overlfow pan. Do you run the hose outside your wall or into washer drain
If it's near a outside wall on a slab we run it outside with 3/4" PVC. If you're in a basement you will have to discharge into the floor drain. Good luck, Tom