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sound

In physics, sound is a vibration that propagates as an acoustic wave, through a transmission medium such as a gas, liquid or solid.
In human physiology and psychology, sound is the reception of such waves and their perception by the brain. Only acoustic waves that have frequencies lying between about 20 Hz and 20 kHz, the audio frequency range, elicit an auditory percept in humans. In air at atmospheric pressure, these represent sound waves with wavelengths of 17 meters (56 ft) to 1.7 centimetres (0.67 in). Sound waves above 20 kHz are known as ultrasound and are not audible to humans. Sound waves below 20 Hz are known as infrasound. Different animal species have varying hearing ranges.

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  1. K

    Loud Banging/Knocking Sound when Boiler Powered on

    Hi, I just got the keys to my new flat today and when I turned on the power to the boiler it instantly started kicking out a really loud clicking/banging/knocking sound. The boiler is in the loft so I went up and noticed that the pressure gauge is bouncing in time with the sound. I've closed...
    • klsbatb
    • Thread
    • america boiler sound usa
    • Replies: 3
    • Forum: USA
  2. C

    Combi Boiler making growling sound

    Hi guys, so I have an ‘Exclusive’ combi boiler and for a month or two we’ve noticed it’ll sometimes make a rumbling/growling sound when in use. I’ve put a link below to a short video that shows the sound m From my (limited) research, it seems to point to the gas valve being the problem. Does...
  3. T

    Air / Blowing / Whooshing Sound in All Radiators

    I hear a noise in all of my radiators. The higher the TRV setting the louder the noise gets. If I turn the TRV down to a low setting the noise goes away, presumably because the radiator is no longer heating up. The noise sounds like air moving around the system, although it's very loud. It...
  4. king of pipes

    She's hear safe and sound

    We have a little addition to the family our second Granddaughter born last night mum a baby doing well . Proud Grandparents again . Regards Kop
  5. D

    Dripping sound kitchen sink

    Hi, we have a long drain run in the kitchen . We had some plumbing work done to the drain pipe as it had dropped and wasn’t draining very well and now it has been realigned if we drain water down the sink (1.5 bowl) or have used the dishwasher or washing machine the sink makes a dripping sound...
    • Drew
    • Thread
    • america dripping kitchen kitchen sink sink sound trap usa
    • Replies: 3
    • Forum: USA
  6. H

    Do you recognise this sound?

    I’ve been hearing a noise for some time in one room of my flat - it’s like a regular tapping/knocking sound that comes and goes intermittently. The boiler is in the middle of the flat and the flue and pipes run in the void at the top (flue) and bottom (pipes) of the wall where the noise is...
  7. A

    Foghorn toilet sound!

    Hi, When flushing our toilet, it makes a (very!) loud foghorn sound. Please see the attached video. When I press here, the sounds stops. Could someone kindly advise what I need to do to fix this?
    • agarford
    • Thread
    • america sound toilet usa
    • Replies: 2
    • Forum: USA
  8. P

    Wilo Yonos Pico pump - gurgling sound

    Hello My pump makes an odd sound... see attached file. Is this normal? Tried venting/bleeding it but no difference. Same sound whether the hot water or CH is on. Changing the pump speed doesn't help. Thanks Chris
  9. F

    Weird Sound, but from where?

    Hi all, For the last couple of weeks I've been hearing a weird sound which I assume is coming from the pipes. Some times it's a short burst other times it can last a minute or so But I can't track it down to a precise location. When I hear the noise I dont have any taps running, shower or...
    • Flook75
    • Thread
    • america sound usa weird where
    • Replies: 0
    • Forum: USA
  10. B

    HElP PLEASE! Toilet making weird sound after flushing!

    Hi there guys! DIY and homeowner here! For the past month and a half, every time I flush my toilet, it makes this sound and it sounds like also the water is running! I'm not sure what it is! I always have to turn the water off after I flush, and it's getting annoying! Can someone tell me what's...
    • bethanybmc
    • Thread
    • after america flushing help making please sound toilet usa weird
    • Replies: 1
    • Forum: USA
  11. D

    Vaillant TURBOmax VUW boiler making "cracking" sound

    We started renting a house nine months ago. The house is just over 20 years old and has a Vaillant TURBOmax VUW boiler. The boiler seems quite old so may have been installed with the house? It's regularly serviced but, as of two weeks ago, it started making a "cracking" sound most of the time...
    • Deleted member 112128
    • Thread
    • boiler making sound turbomax vaillant
    • Replies: 2
    • Forum: Central Heating Forum
  12. C

    Whistling sound coming from Hot Water Cyclinder

    Hi there, I have a joule cyclone twin solar unvented pressurised hot water cylinder that is floor standing. Just recently, I have noticed when I turn on the hot water supply taps anywhere in the house, a whistling sound starts to come from the tank itself. It gets louder the more you open the...
    • Conk
    • Thread
    • coming hot hot water sound water whistling
    • Replies: 2
    • Forum: USA
  13. M

    Whistling sound from toilet

    Hey everybody. See pictures attached. We have an American Standard dual flush toilet. It's pretty much brand new as you can see in the picture. Every little while it emits a high pitched whistling sound for a few seconds. It doesn't do this constantly. Sometimes there can be hours between when...
    • Mikey61
    • Thread
    • sound toilet whistling
    • Replies: 3
    • Forum: Canada
  14. A

    Pumpmat sound absorption mat

    Just thought I'd share this with you guys. I wasn't aware of them until today when a customer presented me it while I was changing a shower pump. Its just a thick mat to help reduce the noise caused when the pumps running, big enough to accomenate most pumps and according to the customer it has...
  15. L

    Sound of running water but nothing is turned on?

    Water is constantly running through the cold pipe that leads directly from my stop tap through a few meters of pipe along and then upstairs. I can clearly hear it (and so can the rest of the family)and feel the vibration caused by the flow of water through the pipe. When I turn the stop-cock off...
  16. K

    Clicking sound from external stop tap

    Hello I am hoping someone can help with a very frustrating issue. I have noticed a clicking sound in the water pipes when the cold water is used. It is especially when the washing machine is going or when the toilet is flushed - the clicking noise vibrates through the pipes in the whole house...
  17. L

    Unvented hot water tank noisy filling sound

    My Unvented hot water tank makes a noisy filling sound when the hot water and heating come on. Any ideas on how to stop it?? It's had a new expansion tank and prv recently.
  18. R

    Rushing water sound in rads

    Everytime heating kicks on the radiators make a rushing water sound iv bled all rads no air just water comes out also had heatcare engineer in to take a look and says nothing they can do surely this can be solved
  19. C

    What is causing this sound?

    Hi all, Can anyone identify this sound and what is causing it? It's coming from the boiler flue, and happening intermittently (maybe every 10 minutes or so). Sometimes it comes out as short bursts, other times it can be up to around 5 seconds, but the sound is the same. Cheers everyone! C
  20. A

    Weird “Unfixable” boiler sound?

    So I posted this question on this forum a few months ago but it still has not been fixed. There’s been a sound coming from my boiler which is apparently not fixable. I have been told by a plumber that it is due to condensation from the cold weather? sounds like bs, but is it correct? I’m not...
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