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Water Hammer Question For Kitchen Sink ?

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Robert11

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Sep 9, 2009, 8:07:15 AM9/9/09
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Hello,

Have the typical Delta single-handle faucet for the kitchen sink.
At least 10 yrs old.

Has the single good size ball type of valve inside the handle.

Whenever we turn it ON, the hot or cold, there is a big "bang" in the pipes.

Am tempted to call it a water-hammer, but I always thought water hammer, in
the true sense of the word, was only when one closed a valve, and the
ensuing pressure wave due to the running water being shut, suddenly, caused
the hammer.

Is this true ?

We have no problem when shutting; only when turning it on.

Anyway, I replaced the small hot and cold top-hat rubber seals and their
springs.
No change. Still happens.

But there is a built in water diverter valve that goes to a hose sprinkler
for cleaning pots and pans, I guess.
We never use the hose.

Think this valve might be actuating and causing the problem ?

Hard to see how, as the end of the hose is of course shut off, so even if
the valve actuates, it is leading to a "closed" section of hose. But,...?

Any thoughts on this would be most appreciated.

Thanks,
Bob


Mike rock

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Sep 9, 2009, 9:02:32 AM9/9/09
to

If it only happens at the kitchen faucet, not anywhere else in the
house, I would look at the diverter first. When the faucet is off, the
diverter valve could actually be a little open so when you turn on the
faucet, the inrush of water pressure closes it hard. Try this, turn on
the faucet while holding the hose sprayer on. If the banging does not
occur, then that is your problem.

sligoNo...@hotmail.com

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Sep 9, 2009, 9:08:01 AM9/9/09
to
On Wed, 9 Sep 2009 08:07:15 -0400, "Robert11" <rgs...@xnotme.invalid>
wrote:

...


>
>Am tempted to call it a water-hammer, but I always thought water hammer, in
>the true sense of the word, was only when one closed a valve, and the
>ensuing pressure wave due to the running water being shut, suddenly, caused
>the hammer.

You are right and it is not likely waterhammer.

I would tend to believe you have some loose pipes somewhere. I
suggest following the pipes and have someone turn the water on and off
unitl you find the source.

Do you have city water or a well?

If city water do you have any kind of pressure reduction
device?

If well check any pressure tanks.

Does it do it equally on hot and cold water?

fftt

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Sep 9, 2009, 11:16:42 AM9/9/09
to

When I re-did my 1930's house plumbing recently (PEX) I put in water
hammer arrestors in the laundry on the hot & cold water lines.

They are the piston style & installed inside the wall. I can hear
them activate when the fill valves turn on, not when the when they
turn off.
They are actually behaving as a water accumulator in an attempt to
maintain water pressure.......when the fill valve opens, the line
pressure drops & the arrestors supplies a bit of water.

You are correct that "real water hammer" occurs when the kinetic
energy of the a long run of water is dissipated as a pressure spike
when a valve is suddenly shutoff.
But if you've ever played with a garden hose or worked with high
pressure hydraulics.....you can see how hoses jump & whip as valves
are turned on AND off.

I believe that what oyu are experiencing is similar to what happens in
my laundry.

If you turn the water on slowly do oyu still get the noise? How long
is the piping run to the kitchen?

I dont think its the diverter valve.

You could try adding some of those small screw-on laundry arrestors to
see if they help.

The sudden pressure drop in the water lines could causing them to jump
around. Give the arrestors a try & secure any loose pipes.

cheers
Bob

PS....Mike rocks proposed experiment is a good one, let us know how it
works out.

Phisherman

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Sep 9, 2009, 5:22:30 PM9/9/09
to
On Wed, 9 Sep 2009 08:07:15 -0400, "Robert11" <rgs...@xnotme.invalid>
wrote:

>Hello,

If you don't have an expansion tank, add it. You will notice a
difference and it will help protect your water appliances.

Jamison

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Mar 24, 2011, 10:30:11 AM3/24/11
to
responding to
http://www.homeownershub.com/maintenance/Water-Hammer-Question-For-Kitchen-Sink-393578-.htm
Jamison wrote:
I also have the same thing happening and followed your suggestion checking
the sprayer. I held the sprayer open while turning on the faucet, the
banging sound still happened and no water came out of either the sprayer
or the faucet. Would disconnecting the entire connection to the sprayer
work??? Thanks for your help.
Jamison.
Mike rock wrote:

> On Sep 9, 8:07=A0am, \"Robert11\" <rgs...@xnotme.invalid>


> wrote:
>> Hello,
>>
>> Have the typical Delta single-handle faucet for the kitchen sink.
>> At least 10 yrs old.
>>
>> Has the single good size ball type of valve inside the handle.
>>
>> Whenever we turn it ON, the hot or cold, there is a big

>> \"bang\" in the pip=


> es.
>>
>> Am tempted to call it a water-hammer, but I always thought water

>> hammer, =


> in
>> the true sense of the word, was only when one closed a valve, and
>> the
>> ensuing pressure wave due to the running water being shut,

>> suddenly, caus=


> ed
>> the hammer.
>>
>> Is this true ?
>>
>> We have no problem when shutting; only when turning it on.
>>
>> Anyway, I replaced the small hot and cold top-hat rubber seals and
>> their
>> springs.

>> No change. =A0Still happens.


>>
>> But there is a built in water diverter valve that goes to a hose

>> sprinkle=


> r
>> for cleaning pots and pans, I guess.
>> We never use the hose.
>>
>> Think this valve might be actuating and causing the problem ?
>>
>> Hard to see how, as the end of the hose is of course shut off, so
>> even if
>> the valve actuates, it is leading to a \"closed\" section

>> of hose. =A0But,.=


> ..?
>>
>> Any thoughts on this would be most appreciated.
>>
>> Thanks,
>> Bob

> If it only happens at the kitchen faucet, not anywhere else in the
> house, I would look at the diverter first. When the faucet is off, the
> diverter valve could actually be a little open so when you turn on the
> faucet, the inrush of water pressure closes it hard. Try this, turn on
> the faucet while holding the hose sprayer on. If the banging does not
> occur, then that is your problem.

-------------------------------------


mm

unread,
Mar 26, 2011, 2:01:48 AM3/26/11
to
On Thu, 24 Mar 2011 14:30:11 +0000, jazich4_at_...@foo.com
(Jamison) wrote:

>responding to
>http://www.homeownershub.com/maintenance/Water-Hammer-Question-For-Kitchen-Sink-393578-.htm
>Jamison wrote:
>I also have the same thing happening and followed your suggestion checking
>the sprayer. I held the sprayer open while turning on the faucet, the
>banging sound still happened and no water came out of either the sprayer
>or the faucet. Would disconnecting the entire connection to the sprayer
>work??? Thanks for your help.

I have no experience with this problem or problem sprayers, but a) I
don't think it would help and b) I woudl be afraid water would leak
out of the sprayer connection. If the vavle there can cause that
noise, as in the post you replied to (In usenet we bottom post, not
top post liek you did.) and can stick partly open, which isn't the way
it came from the facdtory, yours could start sticking partly open too.

Tony Miklos

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Mar 26, 2011, 1:06:44 PM3/26/11
to
On 3/26/2011 2:01 AM, mm wrote:
> On Thu, 24 Mar 2011 14:30:11 +0000, jazich4_at_...@foo.com
> (Jamison) wrote:
>
>> responding to
>> http://www.homeownershub.com/maintenance/Water-Hammer-Question-For-Kitchen-Sink-393578-.htm
>> Jamison wrote:
>> I also have the same thing happening and followed your suggestion checking
>> the sprayer. I held the sprayer open while turning on the faucet, the
>> banging sound still happened and no water came out of either the sprayer
>> or the faucet. Would disconnecting the entire connection to the sprayer
>> work??? Thanks for your help.
>
> I have no experience with this problem or problem sprayers, but a) I
> don't think it would help and b) I woudl be afraid water would leak
> out of the sprayer connection. If the vavle there can cause that
> noise, as in the post you replied to (In usenet we bottom post, not
> top post liek you did.) and can stick partly open, which isn't the way
> it came from the facdtory, yours could start sticking partly open too.


You both are off your rockers, it's a homelonershrub post from September
9, 2009. Although it's probably not fixed yet if he was getting help
from homelownershrub.

mm

unread,
Mar 26, 2011, 9:56:25 PM3/26/11
to
On Sat, 26 Mar 2011 13:06:44 -0400, Tony Miklos
<Tony....@gmail.com> wrote:

>On 3/26/2011 2:01 AM, mm wrote:
>> On Thu, 24 Mar 2011 14:30:11 +0000, jazich4_at_...@foo.com
>> (Jamison) wrote:
>>
>>> responding to
>>> http://www.homeownershub.com/maintenance/Water-Hammer-Question-For-Kitchen-Sink-393578-.htm
>>> Jamison wrote:
>>> I also have the same thing happening and followed your suggestion checking
>>> the sprayer. I held the sprayer open while turning on the faucet, the
>>> banging sound still happened and no water came out of either the sprayer
>>> or the faucet. Would disconnecting the entire connection to the sprayer
>>> work??? Thanks for your help.
>>
>> I have no experience with this problem or problem sprayers, but a) I
>> don't think it would help and b) I woudl be afraid water would leak
>> out of the sprayer connection. If the vavle there can cause that
>> noise, as in the post you replied to (In usenet we bottom post, not
>> top post liek you did.) and can stick partly open, which isn't the way
>> it came from the facdtory, yours could start sticking partly open too.
>
>
>You both are off your rockers, it's a homelonershrub post from September
>9, 2009.

I don't waste my time looking at dates, and even after looking I don't
don't know where you got 2009. :-)

Tim

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Jan 23, 2022, 8:45:07 PM1/23/22
to
I installed a new Delta Kitchen Faucet #10902LF a month ago. I did what you suggested above and had the results you describe. Now what do I do the remedy the problem? Kindly reply, Tim

--
For full context, visit https://www.homeownershub.com/maintenance/water-hammer-question-for-kitchen-sink-393578-.htm

Tim

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Jan 23, 2022, 8:45:07 PM1/23/22
to
I have city water and a PRV. Cold side only.

Rod Speed

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Jan 23, 2022, 8:57:50 PM1/23/22
to
Tim <d52dff80e7e1e27f...@example.com> wrote

> I installed a new Delta Kitchen Faucet #10902LF a month ago. I did what
> you suggested above and had the results you describe. Now what do I do
> the remedy the problem? Kindly reply, Tim

Unlikely he is still reading there after 12 years.

Peeler

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Jan 24, 2022, 4:22:49 AM1/24/22
to
On Mon, 24 Jan 2022 12:57:39 +1100, cantankerous trolling geezer Rodent
Speed, the auto-contradicting senile sociopath, blabbered, again:

<FLUSH the abnormal trolling senile cretin's latest trollshit unread>

--
The Natural Philosopher about senile Rodent:
"Rod speed is not a Brexiteer. He is an Australian troll and arsehole."
Message-ID: <pu07vj$s5$2...@dont-email.me>
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