The initial call was set for a call back, stating the vent stack was still holding water. I climbed up in the attic and cut into the 1 1/2 vent stack. The line was completely dry, no moisture at all. I then inspected the area beneath the sink were they saw water. The pee trap was leaking at one of the lock nuts. I tightened that nut up and the water stopped, call should not be considered a 45.