My front load washer fills using intermittent spurts. My pipes bang and jump, primarily the hot water pipes. The problem has significantly worsened over the last few months. I put water hammer arrestors on the hot and cold water valves between the washer's supply hoses and the water valves. No improvement. I read that decreasing water flow might help so I turned the hot water valve back about halfway. No improvement. I had a plumber out and he said he's never seen such a bad water hammer problem. He said a whole house water hammer arrestor is expensive and may not work. He is consulting another plumber. He wondered about the soleniod in the washer that controls water intake. Does anyone have any advice? With all of this banging, I'm afraid to use the washer - I don't want to have a pipe spring a leak!