My furnace stopped working, it had some read-outs saying the exhaust was not working. Turns out the exhaust pipe was full of water and filled the exhaust fan with water. I cleaned all of this out, but now I want to correct the problem.
My exhaust PVC travels from the furnace to the outside wall. There is a belly in this pipe. Thats were the water was sitting.
Looks like I need to have it angled to drain back to the furnace - I need to correct the belly. Is there a standard size for this type of pipe? Mine looks to be 3" dia. Rather large.