How do I trace and cure water hammer in pipework!?

Answer 1

Secure any loose pipes below floors, in walls etc. with pipe clips. You will have to look in the area where you hear the hammering to find the loose pipes. Also try closing your mains stopcock slightly.

Ignore the references to radiators above, it has nothing to do with your heating system, it's the MAINS water supply.

Answer 2

Locate all of Your Drain-Taps in Your System. Is it an Old-style Radiator Heating System ? At the Base of each Radiator will be a Drain. Go to the Highest Level of Your Pipework,and open each Drain, One at a Time, and use a Container to Catch the Water coming out.Chances are, You've got some Air Trapped in Your Pipework that's making it Hammer.You'll See Contaminated Rusty Water coming out, along with Spurts of Air.Once the Water Clears up, and You get a good steady Flow of Water, Close the Drain, and move on to the Next Drain. Once You get all of the Air out of Your Pipework, the Water Hammering should Stop.

Answer 3

Water hammer is frequently caused by the water having too much energy. Your pressure ie probably in excess of 1 bar even as high as 4 bars. The only way to reduce pressure is with a pressure reducing valve fitted on the incoming main, About £40 fitted UK
Water hammer has NOTHING to do with CH
To save money, try securing pipework in the attic with old carpet, and clip well.
You can also fit an air chamber to absorb excess pressure, make sure it is fairly large.
1 bar = 15 psi

Answer 4

If the problem comes when you turn on the cold water tap, it is caused by the jumpers (that's the loose bit that holds the washer) in the tap and in the stop-valve vibrating at the same frequency. You can usually cure this by greasing the stem of one of them. (Not both!)

If the problem starts when the tank in the loft of toilet is filling, it's because of the position of the float in the tank. With the loft tank, adjust the ball so it's not in the middle of the tank (if you've got one of the old style stop valves, you may need to replace it). With the toilet, put a partly inflated plastic bag under the float, then adjust the valve so it doesn't overflow.

Answer 5

Your new taps have a fitting set into the spout to control the spray, and I am guessing your old ones didn't, you need to use less pressure with new taps than you did with old ones try unscrewing the spout filter see if it stops but beware water will splash everywhere, if it cures it replace filter and use less water pressure , hope this helps good luck.

Answer 6

funny i instaled new taps in my house bathroom both sink and bath and the sink ones make a heck of a racket if i turn them on too far, the old taps didnt do this so im putting it down to the new taps having faulty valves

Answer 7

replace the releif valves on you raditors, it's easy