Washing Machine Drainage Issues: Loud Thumping and GurglingnLoud thumping and gurgling during the drain cycle of a washing machine is a sign that the drain pipe is too small and/or the vent line isn't adequate. To fix this you can try replacing the auto-vent.May 10, 2019,
Your washing machine may not have the correct drain connection. Do you experience slow draining or water on the floor? If so, install a 2″ inch drain with a P trap and connect a vent that connects to the main vent stack. If your home plumbing is the correct configuration, plunging your toilet can stop the gurgling.Jul 30, 2015
What causes gurgling in a kitchen sink? The gurgling noise coming from your sink is actually caused by air escaping from the drain. ... It pulls on the water in the P-trap, making the air movement audible, and as water appears in the drain, it applies additional pressure as it navigates the obstruction.
When a washing machine drains, it pushes out a high volume of water through a drain pump. If the waste pipe has a clog or blockage, it can create gurgling sounds in the kitchen sink and other fixtures simultaneously as the washing machine water and soap drains.