When our clothes washer spins -- there is a LOUD gurgling sound (and sometimes even splashing) in three nearby sink drains!! I'm now also smelling sewer gas odor. The laundry and all three sinks are on the same floor -- but the gurgling does not affect the other three sinks and shower stalls or tub -- everything is on the same floor.
What in the heck is going on and how can it be fixed???