Pipes groan, due to the fact that pipes are not secured down properly or that there are loose parts in the faucet or mixer.
choir members in your pipes
Probably an air-lock somewhere !
yes
no they are not
In the U.S. they are called plumbers, assuming you mean water pipes, and not the pipes that one smokes.
yes, as they heat up or cool down they groan
Yes they can. In general, however, the "groan" is not as bad as the "hammer." When water is suddenly forced through pipes containing a sharp bend, the water can hit the side of the pipe as if it's a wall. The force of the water can burst the pipes. Most modern plumbing fixtures account for this "hammering." But there are lots of old pipes out there too!
The instrument that has the letters "groan" in it is the organ. The organ is a keyboard instrument that produces sound by sending air through pipes or reeds. It is commonly used in churches and concert halls for its rich and powerful sound.
choir members in your pipes
Loose Washer will do it every time, Or excessive velocity
groan
groan
The plural of groan is groans. As in "he groans as he realises it is Monday again".
The audience groan at the cheesy joke.I hear him groan in pain.
A homophone for "groan" is "grown."
Groan means to moan or to be bored with something.
Water freezes at 0 deg C. As the water freezes in the pipes, it expands and it is the force of expansion which causes the pipes to burst.