Air In Water Pipes Sound

I m also a little doubtful that air in pipes would cause an ongoing whistling noise.
Air in water pipes sound. The sound can be loud and annoying. Air can become trapped in your pipes due to issues in the water line. You may also notice sputtering as the air bubble travels. Air chambers act as cushions to prevent water from slamming against the piping.
Prolonged noises and vibrating are usually caused by air in the pipes. By increasing the water s velocity in the pipes for a short time you can quiet those noisy pipes. An air chamber is a vertical pipe located in the wall cavity at the point near a faucet or valve where the water supply pipe exits the wall. Gurgling noises from a waste trap usually indicate that the water seal is being siphoned out of the trap.
It is possible to trap a bit of air inside of a horizontal water or hot water heating system pipe and i agree that at least in theory the effective reduced diameter of piping in the area of air trap might be related to pipe noises. The gurgling sound is the air being pulled through the trap as the result of low pressure created in the waste pipes. Both air and water hammer can cause pipes to vibrate and rattle especially in older residences. If banging is caused by air in the pipes the noise will mostly occur right when you first turn on a faucet.
Thankfully despite the unpredictable spurting faucets and clunky noises emanating from your plumbing the air bubble problem can be rectified quite simply without an expensive visit from the plumber. The hammering action that creates the horrible racket is actually capable of damaging joints and connections in the pipe. In addition expansion and contraction by pipes heating up or cooling down can cause a weird. There is a very simple way to solve the problem.
Flushing air in water supply piping to remove a pipe whistle or shriek. If noise or sputtering occurs when you close a water valve or an appliance such as a dishwasher or washing machine switches. Noisy water pipes caused by air will sound like vibrating and rapid ticking. The water may come out in spurts it may make all sorts of noises and takes some time to flow out.
Because air compresses it absorbs the shock of the fast moving water before it has a chance to slam. This deafening sound is known as a water hammer.