Water hammer occurs when fast-closing valves or appliances stop flow suddenly, and the pressure wave travels back through the pipes. The banging noise this Noosa Heads homeowner reported each time taps closed suggested incoming mains pressure was higher than the plumbing could absorb quietly. Our plumber excavated the meter set and fitted an adjustable pressure regulating device on the 20mm outlet side. The valve dampens pressure spikes before they reach the house. Testing confirmed the hammering stopped when taps were operated. Replacing internal fittings would have been unnecessary when the root cause was excessive supply pressure. Sunshine Coast Plumbing and Hot Water services the Noosa area for pressure-related plumbing issues. Persistent water hammer is worth investigating before it stresses pipe joints.
