Why has my toilet started making farting noises after being

Richie4925 · 7 Feb 2009

Just recently my downstairs and sometime upstairs toilet makes a load farting noise after being flushed!! Appears to be the inlet pipe shuddering. Have a 5 year old 6L bottom entry cistern with normal flush and ball fix shut of thing.

Any idea's ?

rottie007 · 7 Feb 2009

maye its creating a vaccumn after being flushed in the tank, check to see if the overflow is blocked maybe?

Richie4925 · 7 Feb 2009

It starts as soon as you pull the flush.

regsmyth · 7 Feb 2009

Could it be the flexible diaphragm inside the flush mechanism thats getting old and less flexible? Not that it's easy to get to it to check....

Richie4925 · 7 Feb 2009

No, already just replaced that and thats not it !!!!

regsmyth · 7 Feb 2009

Seems odd if it happens on both toilets. Does it sound like it's coming from the pipework or the cistern?
Are the isolating ball valves fully open?
Could it be water hammer? (Are pipes secure?)
I assume the cisterns are mains fed (ie not from the F+E tank in the loft?).
Could the ball cock be rubbing on something?
Sometimes the ballcock can get "jerky" - check the split pin for wear.
Does the farting noise diminish slowly as the cistern fills, or stop suddenly at some point?
Is it really a farting noise (ie air) or just a vibration in something?
How about uploading a sound file so we can all have a listen?!!
Perhaps this post should be in the plumbing forum.

cider · 7 Feb 2009

sure its not a delayed echo

Dan Robinson · 7 Feb 2009

water hammer... or poor diet...

kevplumb · 7 Feb 2009

Richie4925 said:
Just recently my downstairs and sometime upstairs toilet makes a load farting noise after being flushed!! Appears to be the inlet pipe shuddering. Have a 5 year old 6L bottom entry cistern with normal flush and ball fix shut of thing.

Any idea's ?

mains or tank fed ??

swidders · 7 Feb 2009

Richie4925 said:
Just recently my downstairs and sometime upstairs toilet makes a load farting noise after being flushed!! Appears to be the inlet pipe shuddering. Have a 5 year old 6L bottom entry cistern with normal flush and ball fix shut of thing.

Any idea's ?

Sounds like the inlet valves - (rubber diaphrams).

Isolate supply and service the fitting, or replace if can't get parts (not expensive)

Bambergaspipe · 7 Feb 2009

mains or tank fed ??

tank fed toilet? never came across one of them, how do they work? must take an age to fill if gravity fed by a tank.

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Why has my toilet started making farting noises after being

swidders

Bambergaspipe

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