So my relative was complaining there was a leak from the hot water system so i unscrew the nut and taped the grooves and put it back on. problem is there is now a huge water hammer noise from the afterwards of fiushing the toilet. What do besides call a plumber?
Is It Water Hammer?
ilove on 28/08/2020 - 05:07
Comments
Turn the stop cock for the toilet back so the flow is reduced. Toilet will fill slower but may be quieter.
how i regret googleing this
Stopcock= tap
Ha ha. Except it’s like a ‘pre-tap’. The tap before the main outlet. Eg the stop cock under the sink to enable you to turn off water to be mixer or dishwasher and the tap that isolates the loo.
Are you sure it’s not MC Hammer?
WC hammer
You’d be screwed if it was MC Hammer but you should be able to stop WC Hammer.
What does flushing the toilet have to do with your hot water system? I think you have bigger problems. Don't flush with hot water.
Sounds weird that you fixed something on the hot water circuit and the cold water circuit hammers, unless the pipe you fixed was the inlet (cold water) side. The leak may have released pressure in the circuit and now you have fixed it, there is no way it gets released.
The other weird part is that most toilet cisterns shut water off pretty slowly as water rises, it’s seldom a slam shut operation. Try some other taps near the toilet and see if opening them quickly and closing them quickly causes the same hammer in the lines.
The other thing you can do, and you seem savvy with a spanner, is maybe try installing a shock/hammer arrestor in the line that is causing the issue. That’s all a plumber is going to do and charge you $300 labour and add 30% onto the parts for the inconvenience for doing it for you…
Follow the procedure listed under "1. WATER HAMMER":
https://www.fluidmaster.com/toilet-problems/toilet-is-too-lo…
i wonder how it works. risky?
Not risky at all. Takes 5 mins and is a piece of piss.
Step B really means start with the tap furthest away from the main tap and work to the closest.
Step G start with the tap closest to the main tap and work outwards.
Piece of piss… :) good pun.
Just a bit hard to hold without it being frozen and wearing gloves :)Had a water hammer issue with my kitchen mixer & washing machine, saw this in my search results and gave it a try - worked like a (profanity) charm. Thanks mate!
If you find that other areas also hammer, adjust the water pressure from the meter end. Keep turning it down till it stops hammering but still gives acceptable water pressure for your needs
So previously there was no water hammer, now there is? Seems like something you did, caused it. So my advice would be to just undo what you did step by step?
My guess is when you turned off the mains (I assume) to fix the leak, then and turned it back on, you've opened the tap more than it was previously?
But like others said, seems weird hot water affects your toilet…
OP should advise relative to contact a competent relative.
Try turning off the mains again.
Then find the taps at the highest and lowest points (probably a shower in one room and a bath in another) - turn them both on and let the water drain (wait until the low one stops dripping).
Turn the taps off and then turn the mains back on.
Next time you use the taps they'll splutter like mad for a little while - but hopefully the water hammer will have gone.
that is easy to follow. will pass it on to try.
so we did it. 3rd time the water hammer was not as noticeable as usual.
Whoa just got here and. the water hammer after 2 mins is still going.
NOte when i unscrew the nut the relative … turned off the mains but forgot to let the bathtub tab run water..
So i will let my relative check if he/she wants to do the above instructions
The idea is that this lets some air in to the pipes. The hammer noise is usually caused by the water rushing through the pipes and then coming to a sudden stop when a tap is turned off. If there's some air in the system then the air will compress and should prevent or at least reduce the hammer noise.
water hammer still happening. so bad
Hi there ilove,
I was wondering if you ended up fixing this problem?
I have a water hammering problem too :( thinking of calling a plumber, just not sure whos the best to call.
Thanks x
I think it;s fixed. just turn down the toilet knob / tap. next to the toilet. I'm still banned atm
Thanks for letting me know. I will try that too!
Try turning off the valve for the hot water systems den then test again for water hammer, quite often the jumper valve in the hot water isolation valve will cause the water hammer, failing that, think of all the valves that are left In The on / open position, turn each one off and test for water hammer. 95% of the time the cause is the washer/jumper in the tap vibrating. You can replace the valve or remove the washer and pinch the stem with some pliers, this will restrict the Movement of the washer jumper and reduce the water hammer.
Good luck, hope that helps
I'm wondering if you actually mean water hammer.
Water hammer is when you turn off a tap suddenly and there's a 'bang' sound from the pipes.
You may also be talking about a loud droning sound that happens when water is running - that's not hammer, and is usually a sign there's air bubbles or a broken tap valve vibrating.
Shouldn't your relative be calling a plumber.