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Why Do My Plumbing Pipes Make A Knocking Noise? November 10, 2018 Plumbing
We've all heard strange noises around our homes and most of the sounds are harmless. But if you hear banging water pipes, this could be a sign of a serious plumbing problem. The top three causes of banging plumbing pipes are because of a water hammer, copper pipes or too high of water pressure. These sounds can be heard after a water supply is shut off, while the water is running and randomly throughout the day or night. Here are more in-depth reasons why your plumbing pipes are banging and remedies for those noises.

Water Hammer

When running water and is suddenly shut off, the rushing water has no place to go and slams against the shut-off valve. The sound you hear is called a water hammer. It may not sound like a big deal but a water hammer can potentially damage joints and connections in the pipes.
To address the water hammering, you'll need to inspect all visible piping while the noise is present to see if there are any loose or vibrating parts that need securing. Next, you'll need to check the air chamber. The air chamber is the vertical pipe located near your faucet and is often in the wall cavity that holds the plumbing connected to your sink or tub. The purpose of the chamber is to absorb the shock of fast-moving water that is suddenly stopped. Unfortunately, over time it loses its effectiveness and it will need to be replenished. To do that, turn off the water supply to your house. Open the faucets to drain out any water. Then turn the water supply back on. The incoming water will flush the air out of the pipes but not out of the air chamber. The air supply will then be restored to your air chamber.

Copper Pipes

You may also hear banging sounds coming from your plumbing if your home has copper pipes. Copper pipes tend to expand as hot water passes through them. If these pipes are in a tight area, they will expand and noisily rub against other structural features.
In most cases, expanding and contracting copper pipes will not cause a leak. And unless you are remodeling, there's no reason to add additional padding around these pipes. The simple solution would be to slightly lower the water temperature setting on your hot water heater.

Water Pressure

Another reason for banging water pipes is that the water pressure is too high. Most modern homes have pressure regulators that mount where the water supply enters the house. You may consider having one installed if your home doesn't have one. Too much water pressure could damage any water-supplied appliances like your washing machine or dishwasher. It's recommended that water is delivered to your home at no lower than 40 and no greater than 80 psi (pounds per square inch).

plumbing in a motor home /caravan is much the same as in a house
just turn of the pump first then turn off any water supply to the van and disconnect as you would in a house

I would suggest that if the low flow is affecting the hot water only that the filter is restricted where the tap plumbing joins the house plumbing. The filter is in a small housing which is right next to the house plumbing. Turn off the hot water supply and ensure the mixer is in the off position. Disconnect the hose adjacent to the house plumbing using a 19mm and also a 10mm spanner to stop the thin hose twisting. Then use a 13mm spanner to unscrew the filter housing.

3 possibilities.
1. Water pressure is low going into the fridge- the way to test this is turn the water off, remove the line from connection in the back of the fridge and put it in a bucket to see the flow. The water should be shooting out with good pressure. If it is not, then you have a plumbing issue, likely at the valve under your sink.
2. Water filter is clogged- If your model has a water filter, it should be changed every 6 months.
3. Bad water valve. The solenoid valve in the fridge, right at the back where the water connects could be going bad and not opening all the way.

The air within needs to circulate. Check that the ( supply and return ) vents are not blocked. Try moving items away from these locations.

Hello.Maybe the drain is blocked.it sounds like your machine is working ok to me,if you can hang the hose over the edge of a laundry tub & make sure the plug is out,see if the water drains away,otherwise it sounds like a plumbing problem not the machine.it started only after you moved houses so more likely the plumbing.hope i helped.

This valve needs to be taken apart and lubricated with pure silicon grease (available at plumbing or builder's supply houses.) Good luck.

If your fridge has a water filter, you should change it every 3 months. An old filter can cause slow flow problems.

But it will never come out as fast as the kitchen sink. Depending on the location of your fridge, you have 10 to 25 feet of 1/4" pipe between your water glass and the high-flow plumbing, and water just won't move very fast through that.

You need a belt wrench.



This and other versions can be found at Auto parts stores and plumbing supply stores.

It wraps around the filter housing and applies pressure evenly over the whole surface to prevent breakage.

You may need to use large channel locks on the main housing as you turn the belt wrench to prevent breaking pipes if it is stuck really tight and you have plastic pipes.

no the water does not have to be plumbed in for the frige to cool. replace bulb. if short in the system exists then you will need to replace an interal wiring harness.