Loud piping and horn noise when we flush toilet
- Thread starter biggiebig
- Start date
Sponsored Links
change the ballvalve or tighten the jacking screw against the side of the cistern 
Sorry for my lack of knowledge but which washer ???
Sponsored Links
I had what sounds like a similar problem with an older toilet in my house recently - it would emit a load groaning/roaring noise when refilling, along with vibration in the pipes.
I finally tracked the problem down to the two-piece design of the arm that joins the floating ball to the cistern ball valve. On refilling, the small section that butts up against the valve would hammer against it, causing the noise. The rubber washer was also knackered, probably due to age.
I couldn't source a suitable washer, so I replaced the whole cistern ball valve assembly (around a fiver from a local plumbers merchants) and that cured the problem.
I finally tracked the problem down to the two-piece design of the arm that joins the floating ball to the cistern ball valve. On refilling, the small section that butts up against the valve would hammer against it, causing the noise. The rubber washer was also knackered, probably due to age.
I couldn't source a suitable washer, so I replaced the whole cistern ball valve assembly (around a fiver from a local plumbers merchants) and that cured the problem.
it is actually quicker and easier to swap the whole ballvalve, often you can leave the old stem in place and just swap the working assembly..
Identify if the cisstern is fed at mains pressure or from a tank, and observe if your old one is side-fed or bottom fed, and measure it before buying a new valve.
If you like, you can repair the old one later, when you have plenty of time and space to work. You can then keep the repaired one as a spare to swap back later. the cost of a repair kit or a new valve is very small.
You might also like to consider swapping the old-style ballvalve to a Torbeck or other quiet valve. they really are astonishingly quiet.
If your pipes are loose they may vibrate but you can clip them to the wall
Identify if the cisstern is fed at mains pressure or from a tank, and observe if your old one is side-fed or bottom fed, and measure it before buying a new valve.
If you like, you can repair the old one later, when you have plenty of time and space to work. You can then keep the repaired one as a spare to swap back later. the cost of a repair kit or a new valve is very small.
You might also like to consider swapping the old-style ballvalve to a Torbeck or other quiet valve. they really are astonishingly quiet.
If your pipes are loose they may vibrate but you can clip them to the wall
DIYnot Local
Staff member
If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Are you a trade or supplier? You can create your listing free at DIYnot Local
