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The LavaTap Water Hammer Arrestor is an essential component for homeowners and renters looking to stop noisy pipe banging caused by quick-closing valves in washing machines and dishwashers. By utilizing a sealed piston chamber to absorb hydraulic shockwaves, these arrestors protect your plumbing connections from long-term stress and potential leaks. While they are highly effective at mitigating pulsing damage, it is important to note that you may still need a pressure-reducing valve if your home water system consistently exceeds 4 bar of pressure.
| Model Part Number | LT-WHA-34-2PK |
|---|---|
| Brand | LavaTap |
Yes, if both lines use quick-closing valves, installing an arrestor on each line provides the best protection.
Yes, the LavaTap Water Hammer Arrestor is designed to function effectively in both horizontal and vertical mounting positions.
You can use a simple screw-on pressure gauge on your outdoor tap or indoor service valve to measure the static water pressure.
No, the internal piston chamber is a sealed, maintenance-free unit.
This unit uses 3/4 inch BSP threads, which is the standard for UK and European appliances. Check your appliance specifications to ensure compatibility.
Ensure the arrestor is installed within 1.5 metres of the appliance; check that all connections are tight and that there are no air locks in the line.
Check that the rubber washer is correctly seated; if it persists, use a small amount of PTFE tape on the threads or tighten slightly with an adjustable wrench.
Installation is straightforward and requires only basic plumbing tools, such as an adjustable wrench. Always ensure the water supply is turned off at the isolation valve before disconnecting your appliance hose. Screw the arrestor onto the 3/4 inch BSP thread of the water supply, then attach the appliance inlet hose to the outlet side of the arrestor. Ensure that all rubber washers are seated correctly to prevent leaks. Periodically inspect the unit for any signs of external corrosion or moisture at the connection points, though the internal piston is maintenance-free. If your home has high water pressure, confirm your system pressure is below 4 bar to ensure the longevity of the arrestor unit.
