Surrey Dave
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| posted on 24/5/11 at 10:07 AM |
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Why Does My Cistern Inlet Pipe Sound Like A Trumpet When Filling?
As above , when my cistern is nearly full the 15mm copper pipe starts oscillating , sound like note on trumpet , my neighbour's not impressed it
resonates through his house, I can damp it down with a towel.
What happens to the cut off valve to cause this?
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r1_pete
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| posted on 24/5/11 at 10:21 AM |
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what type of valve and cystern do you have, plastic cystern? plastic bottom fill ball valve, side entry brass? there are several causes depending on
the setup, and not all that obvious.
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Surrey Dave
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| posted on 24/5/11 at 10:33 AM |
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Side entry brass
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Mr Whippy
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| posted on 24/5/11 at 10:34 AM |
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you may need more pipe suports, though you can buy quiet castern valves now that are almost silent
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ashg
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| posted on 24/5/11 at 10:48 AM |
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start angle grinding bits for the car inside the house. he will soon change his mind about the noise.
Anything With Tits or Wheels Will cost you MONEY!!
Haynes Roadster (Finished)
Exocet (Finished & Sold)
New Project (Started)
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r1_pete
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| posted on 24/5/11 at 10:51 AM |
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Check that the mounting through the cystern is tight, if it is a plastic cystern you may need to fit a metal reinforcing plate which is usually
supplied with a new ball valve, any movement either from a loose fitting or wobbly plastic cystern can cause the resonating.
It could also be wear in the ball valve itself, easily remedied with a new one, only about £5.
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nick205
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| posted on 24/5/11 at 11:22 AM |
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Just replaced a noisey cistern filler that sounded like a fog horn for the last 15 secs of each fill. It was the old bottom entry ball valve and
front mounted lever type filler. Now replaced with a kit from Screwfix with a whipser flow filler and pushbutton conversion for the lever. Less than
£20, 1 hrs work, near silent and much faster fill - Job Done as they say!
Then no. 1 son went and dropped a china soap dish and cracked the bloomin' pan 
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BenB
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| posted on 24/5/11 at 12:06 PM |
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In a trumpet the sound is created by air flowing through a small orifice. The cistern will be doing a similar thing when the valve is closing. You
could try changing the washer (although I'd just replace the valve and be done with it, they don't last for ever).
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Surrey Dave
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| posted on 24/5/11 at 12:27 PM |
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OK Pass the monkey wrench!
Is there a kit to convert side entry front lever to push button?
Thanks Dave O
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nick205
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| posted on 24/5/11 at 12:53 PM |
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This is the kit I fitted - the button fits ina standard sized lever hole top, front or side and is on a flexible pipe back to the flusher unit.
http://www.screwfix.com/p/fluidmaster-button-cable-dual-flush-bo
ttom-inlet/58353
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Surrey Dave
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| posted on 24/5/11 at 02:04 PM |
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Locost!
Trip to local hardware shop, packet of 2 washers £1 ,sorted!!!!!!!!1
The only thing I can see is that the old washer had a bit of a circular dent where it sealed, may have caused some strange flow when closing making
the pipes resonate.
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