LOUD bang following toilet flush and washing machine cycles

[harbour]

Hi, I sincerely hope that someone can help me. We recently had something inside the toilet renewed following a problem. This is now fixed but everytime you flush the loo (when the flush is completely finished) it rewards us with a resounding BANG and I mean loud. I am really worried that this will wake the neighbours, not to mention anyone else sleeping in the house. The washing machine also makes this noise following a cycle and I'm at my wits end as to how we can put this right. Can anyone offer any help with this please. Kindest regards

 

[franz]

sounds like water hammer, the water pressure is causing the problem try to reduce it a touch by turning the mains down a touch ,and see if that helps.

 

[khill]

Get a plumber to fit a miniture expansion vessel to your cold main
this should solve your problem

 

[REDSAW]

pipe clips come off some where try and locate it.

 

[nysk2008]

maybe put a flow restrictor where the water inlet of the toilet is, make sure the pipework is clipped properly aswell

 

[Plumbstar Tom]

i found at one customers house that the stop tap actually being part open was causing the bang!