First off please excuse my lack of knowledge in regards to plumbing. I've done small jobs here and there, and have helped friends in the past, but I don't claim to know a lot about plumbing.
Long story short... I had some foundation work done to the house. I was expecting problems to arise because of this. The doors needs to be rehung, and small cracks appeared in the plastic. No problem.
Basically what looked to be a small leak under the house, is a much bigger problem. The drain for the washer had a small leak on a fitting, but had a much larger problem where it meets up with the main drain of the house.
I also noticed the whole plumbing job on the washer is wrong so it will need to be completely redone. There is no trap, vent, etc.
Here is the pipe after I cut it in half. I was amazed at the buildup inside. Is this caused by no vent, or maybe the wrong angle of the drain?
Where this galvanized pipe (1' 1/2"?) meets the old iron drain. As you can see the problem doesn't get any better. When I checked this area the galvanized pipe could move around inside in the iron pipe.
A few questions:
1) I'm planning to redo all the lines for the washer with PVC. How do I properly connect PVC with the iron drain? The supply lines will stay galvanized.
2) Can the trap for the drain be under the house, or should it be in the wall cavity?
3) What should the angle of the drain pipe be for maximum efficiency? I'm wondering if this may not have had a good enough angle. If not what would cause this amount of buildup? Could the lack of a vent have caused this?
Any help would be appreciated.