More then likely it is the pump discharge flex line that is vibrating/bouncing against a wall/floor
Just need to put some insulating tubes around the lines and secure them to the wall/floor etc using tie wraps that have mounting flange for a screw
Any hardware store.......
Is it time for YOUR Medication or Mine?
Dodge 3500 w/Tractor Motor & NUWA 5vr
US NAVY---USS Decatur DDG-31