Whirlpool Hydraulic Shock / Water Hammer

Water hammer or banging pipes when water heater cycles or valves close

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Possible Causes

Fast-closing valves, high water pressure, lack of water hammer arrestors, loose piping

How to Fix / Troubleshooting

Safety first: Secure ladders or access if working near ceiling pipes.

Mitigation:

  • Check water pressure; if high, install or adjust a pressure-reducing valve.
  • Install water hammer arrestors near quick-closing fixtures (dishwasher, washing machine).
  • Secure loose pipes with proper clamps and supports.
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Repair Difficulty

Easy 2/5

Required Part

Water Hammer Arrestor (plumbing accessory)
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