How to Quiet Washing Machine Banging Sounds by Installing Water Hammer Arrestors

Demonstration showing how to fix loud pipe sounds during a washing machine water filling cycle. These loud sounds are water hammer, when the washing machine is filling with water and the washing machine water valve shuts quickly, the running water slams into the valve. In addition to this being noisy, these shocks are not the best for your pipes. To fix this issue, water hammer arrestors can be installed on the hot and cold fill ports of the washing machine.
Move the washing machine away from the wall. Turn off the hot and cold water connections. Disconnect the hoses going to the washing machine. Screw on the water hammer arrestors to the hose ends and to the washing machine ports. Slowly turn the water back on and check for leaks. Move the washing machine back. Over the course of the next week, check for leaks to make sure your connections are good. Enjoy your quiet wash cycle!
The washing machine in the video is an LG WM3400C.

[@barbaranelson3489]

I just had the arrestors added however, they were installed above washer on wall and washer still hammers? Do you think it would make a difference if they were installed on the washing machine?
Also wanted to mention... had a pressure tank installed and water pressure regulator added (hope I got names right?... I think you'll know what I mean) , before arrestors (above the washer,) because water pressure was reading too high and thought this would stop water hammer in washer.

[@FASTmaster789]

Thanks for your comment, sorry I just saw it now. If they're just a hose-length away, I wouldn't expect it to make a huge difference. One thing that I think is possible in this case, is that perhaps you're hearing the valves rapidly closing? By contrast, the water hammer is the one that is louder/deeper and sounds almost like it shakes much of your piping when it happens. It's also possible that the arrestors are too small for your given water pressure, but I think this is unlikely. I suppose you could always add another pair of them on the washer itself, but I wouldn't think this is necessary.