: How can I test to see if my shower pan is leaking? I am trying to sell my house and the inspector saw some water damage from a previous problem. I know it is not leaking now but have to prove it to the buyer.
You need to get a 2" dollor plug and seal off the drain. Fill the shower with water and let it stand 24Hrs If the water is still in the shower pan ......no leaks. To test the drain use a lot of food coloring and let it drain, Look for colored water on your ceiling. No colored water............no leak.Dale's Plumbing Service Inc LMP