OK, so the septic guy comes and pumps out our septic tank. He says everything should run fine.
So I start to run once again the load of sheets and towels I had in the washer, and throw together dinner.
Suddenly James says, "Mom, the sink is filling up!"
Sure enough, the kitchen sink was filling up with water, and as I ran to the sink I looked into the laundry room and saw fresh water on the floor.
We turned off the washer. Further research determined the water in the laundry room was bubbling up from the drainage pipe behind the washing machine.
While Don and James go to church I am sitting at home, waiting for the plumber to call me back.