4

I feel like an idiot but it turned out to be the subwoofer in the living room that apparently died while I was working on that dimmer. This is after checking the attic today, checking out the alarm system's control unit and lowering the water pressure last week. Since the sound seemed to come from the wall I just decided to unplug everything one by one and ...


3

Put them near the sink. Water hammer is caused by the inertia of the moving water in the water lines trying to keep moving when a valve shuts it off suddenly - so placing them at the far end of lines is most effective. In "typical" bathroom fixtures of the current era, the sink is also the most likely to be a "quick" shutoff (which is the ...


3

That's not water hammer, or it's very little at best. That sounds more like the fact that your fill valve is getting a little old and is banging shut harder than it used to. I would just leave it, but if it bugs you, replace the fill valve. There are newer ones on the market now called "quiet" or even "silent" fill valves. They are a little more money, but ...


3

In the US you can almost always (almost... there's certainly exceptions) rely on hot being on the left and cold being on the right. This will be the case for washing machine hookups, bath tubs and faucets. I'm not sure if that is a code requirement anywhere, but it is almost universally used. Switching sides would have safety implications because someone ...


3

I had this problem. My pipes started making a very loud banging. I tried the drain the lines trick but it didn't help. I then put a water pressure gauge on my faucet and found my water pressure to be up over 100psi. I followed the steps for reducing the water pressure on the water pressure reducing value but then noticed that after running the water for ...


3

The airspace in the arrester is creating a shock absorber just like on your car but I will use a bicycle tire to bring it to the kid level. With the pressure a few psi below the actual the piston can move and absorb the shock of the water hammer. If the pressure is above the water pressure the piston will be locked in place and not absorb the water hammer it ...


3

Water hammer happens when there is too much pressure in the line when the valve shuts. Ironically, it is a problem when the water supply doesn't have enough air, not water. Since water can't be compressed, all of the pressure is transmitted to the pipe as mechanical force when the valve is closed, causing it to knock and rattle. Reducing the water ...


2

Pipes normally bang because they are banging against something. Try securing them.


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We bought a front end loader washing machine and had the problem from day one. It wasn't bad but worsened with time. We put in water hammer arrestors that seemed to work for the most part for about a year, and then, over about a week, seemed to give out completely. We replaced the water hammer arrestors with new ones, but that didn't help. We then bought ...


2

As per @Lukus , that unit is a geothermal heat pump that is using well water to provide for an approximately 55 degree source water. Wow, what a waste of good water! If the device you are speaking of is the item on the left side with the gray top and the spring it is temperature sensing control valve, probably made by "Johnson Controls", that maintains a ...


2

Water hammer happens when you abruptly close a valve. Water has mass. Once you get it moving toward the valve, if you slam the valve shut, the water is still moving. It slams into the closed valve and bounces -- water cannot compress. Where can that ultimately go in a house where all the pipes are 100% full of water and all valves closed? Back out to the ...


2

Well vinegar sounds like a good idea but it is an acid. As an acid it will attack the tin in the brass leaving the copper. It should be ok. I have valves that get sticky all the time: the problem is usually the seat or the diaphragm. As you noticed the seat was having issues flipping it over would be what I would do. Along with cleaning. Was there a small ...


2

I would say a soft start controller would not change the problem I have many booster pumps and the only thing a soft start would be good for would be throttling the pump. Centrifugal pumps create a large hammer action in how they work. A expansion tank may be your best option. The quality of the valve may also be the issue I can warn you I had a irrigation ...


2

If you are concerned about saving money, get the "not lead safe" one as this is a non-potable water installation. If you are paranoid about lead and the remote possibility that a significant amount of lead could backflow from the cheaper arrester installation into your drinking water then spend the extra money on the lead-free certified product. This is, ...


1

If the supply valves for the sink (farthest away) are screwed onto a stub of the copper pipe with a male adapter (they should be), then you can simply put in a tee on that pipe, a close nipple to re-attach your supply valve, and in the top of the tee, facing up, install an arrester or even just a piece of pipe with cap on the end to trap air in it.


1

A loose washer on the hot water shutoff can also cause a hammer..


1

"Water hammer" (the noise) is caused by suddenly stopping the flow of water in a pipe and creating a "shock wave" because water cannot compress and yet has kinetic energy when moving. The cure for water hammer is to have a valve that closes slowly so the kinetic energy dissipates slowly, or to trap air in the piping system so that the air ...


1

The first thing to try with an old system that suddenly starts hammering is to drain the pipes (turn off water, open all faucets so that water drains from the lowest as air is admitted at higher ones) and then turn the water back on. In many cases there are already passive surge buffers in place (pipe stubs) which may have become waterlogged (lost their ...


1

You can't go wrong replacing 80 year old pipe and valves especially since your neighbor has had a serious leaking problem. You shouldn't really need to heat the joints to take the pipes apart, just two 12 or 18" pipe wrenches. If your referring to the copper to galvanized fitting in the picture, just cut the copper pipe above the copper fitting and ...


1

If it is only the mixer tap that causes the issue then fit it close to that. It is not surprising as those short action lever taps shut off the flow quicker than the taps requiring a turn or two to stop the flow. If two taps cause this then either you need two arrestors or one where their supply pipes combine. The only issue with this is that any length of ...


1

Some times a small leak can cause water hammer. It is rare but I have a leak that was not much more than a slow drip cause a loud water hammer it was like a resonant frequency it was very loud and the pipes were not moving much but they were vibrating and making a loud squeal. Once I found the leak and stopped it the problem was solved.


1

Seeing some pictures of the plumbing overall could jog additional suggestions from others, but there are a number of things you can do to eliminate the hammer. Using the product you are buying is one of those things. I would NOT expect that it is breaking, but the fact that you state its good for a few days then no longer works and you replace it then it ...


1

What you are dealing with here is a water cooled heat pump. As the head pressure builds in the cooling mode this valve allows more water through to dissipate the excess heat. If it is on the heating side, as the suction pressure drops it allows in more water providing heat to be absorbed by the system. I appears to be adjusted all the way down, someone is ...


1

You might have supply hoses that have an internal shutoff valve in one end which closes if the flow rate is too large. These are designed as protection against a ruptured hose. One brand is Watts FloodSafe(tm) supply hoses. If you have these, one might be malfunctioning or connected backwards. This type is unidirectional; the end with the control valve must ...


1

This looks very similar to something I encountered recently. Back a few months ago my water heater started kicking its breaker for no apparent reason. I figured it was just some random occurrence at the time so I ignored it for a few weeks and just kept resetting the breaker (A very bad idea, but I was busy). Then one day I heard water running in the water ...


1

Every time I left the outdoor spigots on (all have vacuum breakers), I would hear a whining sound when I turned on and off several inside water faucets. This always let me know that I, or someone had left an outdoor spigot on. But, it got kind of annoying after 10 years. I had no idea it was related to having vacuum breakers on my outdoor spigots. ...


1

Water hammer occurs when water travels along long straight plumbing pipes and comes to an abrupt stop. When the water flow stops instantly the forward momentum slams into (most likely) some 90° pipe fitting at the end of the long run. Others may have different suggestions, but to my knowledge the only way to stop the water hammer is either add pipe elbows ...


1

the pipes are loose and you are hearing water hammer securing the pipes can fix the problem. another fix is to install a absorber link to one at home depot so you can see what I was referring to.


1

We got on Amazon and Plumber's Outpost carries Sioux 660-TCO Mini-Rester. It says it is for and ice maker. We have a 550 Aprilaire Humidifier and couldn't believe how easy it was to install! The smallest Home Depot carries is for 1/2 tubing. They gave me info on how to cut the copper pipe and hook the mini-rester to the humidifier. I had to buy a pipe ...


1

Water hammer is caused when flowing water abruptly stops and the change in velocity causes the piping to shake if it's not secured properly. Look through the pipes you have access to and make sure they're securely fastened. If not, add some more clamps to secure them. Contact the manufacturer of your humidifier. I'm not sure of the proper terminology but ...


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