Hey everyone, My drain pipe for my washing machine won't drain. Well....not very fast. Once the stand pipe (about 30" tall) fills with water, it will drain over about 12 hours. The entire pipe going into the wall is only 1 1/2" in dia. I just bought this house and the inspector didn't catch this one drain that isn't working. Yes, I've snaked it with a 25' power snake and that didn't fix it. It found nothing. Someone suggested that I get some sort of bladder and put it on the end of a garden hose to give it a water pressure spray. I just don't see how I'll get a garden house down that pipe very far. Another thought was that the drains may not be vented properly. I'm not sure how to check that. None of the other drains in the house have this issue. I'm new on this forum and really appreciate any thoughts that you may have.