Question about Caroma 270W-RF Reflection Round Front Dual Flush Toilet - White

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Loud hammering noise with vibration on piper when the cistern fil

When the cistern fills it makes a hammering noise and the other pipes in the bathroom (taps) shake with the vibration.

I thought it was a air block that would clear but it doesnt seem to be moving.

I have been told that I might have to dismantle a boxed in section to reach a small filler pipe on the floor. Does this make sense??

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You're experiencing "water hammering" it's solvable too.
You can buy anti-hammer add-ons which you can put under a nearby sink, or even on an outside hose bib. This will give the water pipes an air "shock absorber"... since air compresses it cushions the abrupt changes in the pressure where as if it's just water, it'll slam and hammer and vibrate...
Try an anti hammer device added to you supply... you should be able to add it with out too much tearout.
K

Posted on Jun 20, 2009

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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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When tap or cistern is filling loud noise from pipes


This could be one of two issues.

1. You may have high water pressure, causing the internals of the fill valve to vibrate and that vibration wave being transferred to your water pipes causing a reverberation noise called hammering.

An easy fix for this would be to reduce the flow to the fill assy. by turning down the units supply valve from wide open to about half way open. A few more permanent solutions may include, The installation of a Water hammer damper device - installation of a PRV pressure reducing valve - Although not intended for this issue is an air charged bladder style expansion tank installed, this device has been proven to reduce water hammering.

2. Water pipes that are not properly secured, loose and allowed to shake when there is a sudden surge of flow pressure. Much like a garden hose flexes when the nozzle is quickly turned on. This issue is most common with CPVC (plastic) water lines due to their flexibility and will require many more secure points.

A fix for this is a bit more labor intensive, due to having to access the un-exposed water lines in walls and ceilings so as to inspect and/or re-secure them to their surrounding structures.

A tip for securing the pipes where they penetrate through wall studs is to inject an expanding foam product in to the studs penetration, hence when the foam expands and cures it will form a very snug fit.

Note: if ether of these are the case, the problem should not be allowed to continue, because water pipe leaks could occur at the solder or welded connections and/or at locations where the pipes are rubbing against an abrasive surfaces causing a rupture.

Good luck
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