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Frequently Asked Questions

My pipes rattle, shake and I hear a loud knocking when I turn my water on. What causes this?

Akron: Public Utilities Bureau: Business Services Division: ...
That is called a water hammer. Water hammer is a vibration in the pipes. Water hammer has many causes:

Why does my camera rattle when I shake it?

Digital Photography FAQ
Does your camera have an orientation sensor? If your camera does, then there's a good chance that the rattle is the normal function orientation sensor. Do a few experiments tilting the camera and taking pictures to see if the sound of something moving in the camera correlates with the orientation sensor reporting a change of orientation. If they're correlated, then there's a good chance that everything is normal. See similar questions...

What causes the water pipes in my house to make a noise? Will the pipes explode?

Town of Caledon
If a rattling or banging noise is heard from water pipes, it may be a 'water hammer' or 'hammer'. This is caused when you suddenly turn off a water flow (i.e. a dishwasher, a clothes washer, a toilet, or a hand faucet). This sudden shutting off of the flow sends a pressure or shock wave down the water line causing the pipes to rattle or bang. Over time this repeated shock wave can damage pipes and weaken pipe joints. See similar questions...

I can hear a knocking from the back of the car, what is this likely to be?

TVR Cerbera FAQ
A knocking from the rear is more than likely going to be part of the exhaust hitting the chassis. The exhaust is very heavy and not particularly well located, and also grows in length when hot by about 1 1/2 inches! There are also known problems with the rear shocks causing knocking (although this should be only when cold), the differential bolts can work loose, the diff mount can fatigue and crack, or the diff mount bush can split. See similar questions...

What causes rattling pipes?

Plumbing and drain service for Mississauga and Peel region -...
The problem may lie with the fact that the water lines are not properly isolated, the harmonic bounce of your pipes is off, or quickly closing water valves may all contribute to such a problem. We recommend an inspection to end the problem. See similar questions...

What is "knocking"?

Knocking is the sound of abnormal fuel combustion. It is caused by abnormal combustion of the air-fuel mixture in the cylinder. When a spark initiates combustion in a spark-ignition internal combustion engine, the flame front should fan out from the spark plug and travel across the combustion chamber rapidly and smoothly. See similar questions...

Question: What makes my plumbing & drain pipes rattle all the time?

Vpssinc.com Veterans World Wide Commercial Maintenance Servi...
This problem is usually caused by the water lines not being properly isolated. It can be easily fixed but only if your water lines are easily accesible. It means that either in one or many places your water lines come into contact with the wood of your floor joists. All you need to do is get plastic pipe hangers that go beetween your water lines and your joists. For Help installing them please give us a call. See similar questions...

Why are my water pipes always wet in the basement?

Town of Caledon
Water forming on the pipes in your basement is a result of condensation. This happens when there is a difference between the temperature of the air surrounding the pipes and the surface of the pipe. This situation usually occurs during the hot and humid summer months when there is a lot of moisture in the air. The best solution for this problem is to insulate the water pipes. See similar questions...

Who pays for water and sewer pipes everywhere else?

FAQs
The homeowner pays for the installation of the water and/or sewer. The homebuilder, or developer, initially pays for the installation and then passes the cost on the homebuyer in the cost of the home. These costs include their share of the costs of the sewer piping under the streets throughout the neighborhood. See similar questions...

How can I find out if my water is supplied through lead pipes?

Operations FAQ : Utility Services of Alaska
The water main in the road will not be made of lead - usually it's cement-lined cast iron or sometimes plastic - but the connection from the pipe in the street to the pipe to your house, the pipe connecting it to your house, or the pipes within your house might be. In older homes the household pipes might be lead, copper, or galvanized iron. Joints on lead pipes are usually very bulky compared with the relatively neat fittings of copper and galvanized iron. See similar questions...

Sometimes when I turn off the EVOLT E-510, I feel a slight vibration or hear a noise. Why is that?

EVOLT E-510 > Frequently Asked Questions
When the camera is powered down, slight vibration and noise occur as the Supersonic Wave Drive motor resets the image sensor to its default position. The camera takes this action when shooting with the Image Stabilizer function set to I.S. 1 or I.S. 2. In either mode, the camera moves the sensor during shooting in order to counter the effects of camera shake. When the power is turned off, the camera moves the sensor back into the default position. See similar questions...

what causes knocking, pinging, detonation, and pre-ignition?

mkiv.com
detonation and pre-ignition are about the same thing, they just happen at different times in the compression cycle. pre-ignition is either caused by hot spots that pre-ignite the fuel before the spark plug goes off or the actual compression of the air/fuel igniting the mix. remember, when you compress a gas, you heat it up. that's why too much boost can cause extra high cylinder temperatures and subsequent pre-ignition. a lot of people call this detonation, but it isn't. See similar questions...

Why do people hear ringing after leaving a loud rock concert?

FAQ
After leaving loud rock concerts, many concert-goers often complain of ringing in their ears. The ringing sound is a result of the destruction of the cilia by the high-volume sounds. Resonating objects often end up damaged or destroyed. Cilia resonate when a sound reaches the hair’s natural frequency. If the sound is extremely loud and goes on for some period of time, it can cause destructive resonance to the cilia and kill it – the ringing sensation is actually the cilia dying. See similar questions...

What is that loud whaling siren I hear sometimes in the morning?

City of Northlake, IL - Frequently Asked Questions
Every first Tuesday of the month, the City tests its warning siren located on top of the firehouse and at the Public Works facility. The warning siren is in place to alert residents of severe weather, such as a tornado. See similar questions...

Q If we think you are too loud can we ask you turn down?

Jazz Not Jazz FAQs - Frequently asked questions
A Of course, although this happens very rarely. We don’t equate loudness with having a good time. We think playing the right tunes well is the way to create the right atmosphere. We always try and keep a sympathetic balance in the room so that people that want to talk can. See similar questions...

What would cause Mesosilver to turn clear like water?

Frequently Asked Questions (FAQ) - Colloidal Silver Colloids
Mesosilver will turn clear as water if it is frozen solid or contaminated in use. To prevent contamination: See similar questions...

Can I mix this enzyme shake with anything besides water?

Enzyme Weight Loss - Promoting a Positive, Healthy Lifestyle...
Absolutely! Some people prefer to use 8 ounces of skim milk (80 calories) instead of water. Others prefer to add fresh fruit such as half a banana (55 calories) or _ cup berries to vary the flavor. Blending in 1/2 cup of fat-free frozen yogurt (80 calories) is another favorite mix-in. Remember, some flavorings may change the caloric content. See similar questions...

Q:Why do I hear audio feedback when using NetMeeting? How do I turn off the recording feedback?

FAQ
kX Audio driver enables 'What you hear' recording mode by default. In order to turn it off, open the kX Mixer, and set Wave and Synth recording levels to the appropriate values on the 'Recording' page. See similar questions...

I live in an older home, should I be concerned about lead pipes contaminating my water?

Frequently Asked Questions
Lead does not occur naturally in Charleston Water System drinking water, nor is it a result of the treatment process. Chances are your home's water supply does not contain lead; however, if your home was built prior to 1930 or in the 1980s, the interior plumbing system may include lead pipes or copper pipes connected with lead solder. See similar questions...

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