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Hot water pipe clinging when closing valve

When I turn on my faucet, I tend to automatically turn it on to full blast, and I feel that it wastes water while lower pressure will do just fine. I turned down the cold water and now a lower stream comes out when I turn on the cold water. Wanted to do the same with the hot water but when I turn it down, the pipe starts clinging until I fully open the valve (only while the water is on). I'm talking about the valves under a sink in the bathroom. What is causing the clinging? Is it the hot water pressure? It is a good idea to turn down the pressure this way, and if so, any solution to the clinging?

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  • Master
  • 979 Answers

This could be a lot of possible fixes. Try putting a piece of tube insulation around the pipe at where it is hitting on a another pipe or something. This would at least stop the noise. That is the nature of the beast with the noise. Hot water responds that way depending on what is going on in the air .

Posted on Jan 30, 2013

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

  • 171 Answers

SOURCE: Plumbing - no cold water from cold water tap

Hi blondi_1452,

I'm Harvey the Master Plumber.

Your question is: Why would the cold line water be luke warm?

In 30 years I've seen this maybe 10 times. It is relatively rare. But each time it was a cross connection between the hot and cold water lines. It could be this fixture is close to the hot water heater or the cross cnnection is in a faucet or it is in the way the water lines are piped. Anyway I would have to closely inspect the system while running the water in the fixtures in different combinations. Once the cross is located the easiest fix at this point is installing a check valve at the right point. You might consider utilizing thr Repair Directory to find a repairman. Make sure he has solved this type of problem before.

Feel free to contact me again!
Please give me a rating here at fixya.com before you sign off
Thank you,
Harvey your Master Plumber

Posted on Sep 14, 2008

  • 145 Answers

SOURCE: Hot water pressure in kitchen tap rubbish

install a pump

Posted on Dec 12, 2008

  • 75 Answers

SOURCE: Kitchen sink only running with the sprayer

It is hard to be certain without knowing the type of faucet, but if you have the type that has a single lever, it could be 2 things I can think of. If you have seperate knobs, I can only think of one. If you have the type with knobs, take the aerator screen off the end of the faucet, The screen may be plugged with saw cuttings of pvc or what ever type of pipe, or even the water saver orifice may be stopped up. If water runs freely with aerator off, you obviously have a problem there.
If you have the lever type, the ball valve can be in backwards, or even a little way off, and the water can not get to the faucet. I am guessing, the whole faucet assembly MAY be in backwards, but that too can usually be fixed by changing the ball around.
Hope this fixes you up!

Posted on Dec 21, 2008

  • 10865 Answers

SOURCE: clunking noise in sink

You are describing a problem known as water hammer. This will ultimately cause damage somewhere in your plumbing system so it should be addressed. If you are handy you can install an air chamber near the sink. If you want more information let me know. good luck.

Posted on Jan 18, 2009

  • 152 Answers

SOURCE: no water flow in kitchen sink

Sorry to say, you will need to replace that faucet, and also when you are shopping for a replacement, inquire about a rosette to cover the hole left by the voided sprayer.
Good luck... 


Posted on Feb 24, 2009

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2 Answers

I am getting no water from the hot side of all my faucets cold water works fine


Sounds like the water inlet valve to your hot water heater has been closed (turned off) If the tank has no water coming in, it can't put anything out.

Mar 21, 2015 | Plumbing

1 Answer

Crown boiler


follow this chart troubleshooting and fix it. God bless you
est and replace a high-limit cutoff:
  1. Disconnect power to the heater at the electrical panel and post a sign warning others not to turn it on.
  2. Remove the upper access panel and push the reset button.
  3. Replace the access panel and turn the power back on. If the water is hot, the reset was the problem. If not, you'll need to turn the power off again and reopen the access panel.
  4. Use a multimeter to test the cutoff terminals for continuity. If faulty, replace with an exact replacement part.
Drain a tank:
  1. Shut off power at the electrical panel and post a sign warning others not to turn it on.
  2. Close the cold-water supply valve and open a hot-water faucet somewhere in the house (to speed draining).
  3. Attach a garden hose to the drain valve and run it outside the house.
  4. Open the drain valve and allow all water to drain out.
  5. To refill the tank, close the drain valve tightly and open the cold-water supply valve. Also open a nearby hot-water faucet. When a steady stream of water flows from that faucet, the tank is full and the faucet can be closed.
  6. Once the tank is full, turn the electrical power back on.
Test and replace a relief valve:
  1. Lift the spring lever on the valve to fill a small cup. Check the cup for sediment.
  2. If no water spurts out, or if water continues to drip after the valve is released, replace the valve.
  3. Cut power at the electrical panel and post a sign warning others not to turn it on. Close the cold-water supply valve.
  4. Drain a few gallons of water from the tank.
  5. Unscrew and remove the discharge pipe if used.
  6. Loosen the relief valve with a pipe wrench, then remove the valve by hand.
  7. Apply pipe tape to the threads of the replacement valve and screw it into the tank by hand. Tighten it with a pipe wrench. Screw the discharge pipe (if any) into the valve outlet.
  8. Refill the water heater and restore electrical power.
Replace a drain valve:
  1. Shut off power at the electrical panel and post a sign warning others not to turn it on.
  2. Close the cold-water supply valve and drain the water heater completely (see above).
  3. Unscrew the drain valve with a pipe wrench.
  4. Replace the drain valve with an identical unit wrapping the end with pipe tape.
  5. Refill the tank and restore electricity.

Oct 14, 2013 | Water Heaters

1 Answer

Low flow trough the heater


follow this steps and fix it. God bless you
Drain a tank:
  1. Shut off power at the electric panel and post a sign warning others not to turn it on.
  2. Close the cold-water supply valve and open a hot-water faucet somewhere in the house (to speed draining).
  3. Attach a garden hose to the drain valve and run it outside the house.
  4. Open the drain valve and allow all water to drain out.
  5. To refill the tank, close the drain valve tightly and open the cold-water supply valve. Also open a nearby hot-water faucet. When a steady stream of water flows from that faucet, the tank is full and the faucet can be closed.
  6. Once the tank is full, turn the electrical power back on.
Test and replace a relief valve:
  1. Lift the spring lever on the valve to fill a small cup. Check the cup for sediment.
  2. If no water spurts out, or if water continues to drip after the valve is released, replace the valve.
  3. Cut power at the electric panel and post a sign warning others not to turn it on. Close the cold-water supply valve.
  4. Drain a few gallons of water from the tank.
  5. Unscrew and remove the discharge pipe if used.
  6. Loosen the relief valve with a pipe wrench, then remove the valve by hand.
  7. Apply pipe tape to the threads of the replacement valve and screw it into the tank by hand. Tighten it with a pipe wrench. Screw the discharge pipe (if any) into the valve outlet.
  8. Refill the water heater and restore electrical power.

Oct 08, 2013 | Water Heaters

1 Answer

Tricky and weird hot water issue


Bad single-handle faucet cartridge.
Bad check valve.
Bad mixing valve.
Test for crossover.
http://waterheatertimer.org/Crossover.html

Aug 15, 2012 | Honeywell Thermostatic Mixing Valve...

1 Answer

I have a gas Rheem hot water heater.....The flame appears to be on full blast, not just the pilot. I have run no hot water today, so we shouldn't be out of hot water. The water our of the hot faucet...


Sounds like you have cold water entering the hot pipe, or crossover.

(A) Put bucket under water heater overflow pipe, and stand back from scalding water. Gently open and close the TP relief valve on water heater. Check temperature of water to see if heater genuinely has hot water.
It could be the water heater has sediment build-up and is no longer able to heat the water, or the gas thermostat is bad.
http://waterheatertimer.org/Clean-sediment-out-of-water-heater.html
http://waterheatertimer.org/How-to-install-gas-water-heater.html

(B) If water heater has hot water, and hot is not getting to faucet, then you have a crossover problem somewhere.
1) This problem can be located at crossover point of a recirculation system, if re-circ check valve has failed.
http://waterheatertimer.org/Water-heater-recirculation-system.html

2) Failure of a single handle faucet cartridge can cause crossover.
Read how to test for crossover:
http://waterheatertimer.org/pdf/Crossover-on-single-handled-faucet.pdf

3) Other causes for crossover are a failed check valve elsewhere in the plumbing system, for example on the pool equipment. Also a failed mixing valve which is usually installed on top of the water heater so that some areas of the house like laundry room receive very hot water, while the kids bathroom receives lower temperature water.

Upvote the help.
And take advantage of fixya expert assistance live.
For a price, expert works with you while you work on water heater or any do-it-yourself project.
Fixya is always less expensive than a service call.

May 15, 2011 | Rheem 50 Gallon FVR NATGAS Water Heater...

1 Answer

The hot and cold are reversed on our single handle shower (no tub faucet -- shower only)


Hot on left.
Cold on right.
Some single handle faucets have bleed-over where both hot and cold enter mixing valve each time handle is turned on, even when faucet calls for just cold or just hot.
Otherwise maybe a do-it-yourself plumber got pipes backwards... or maybe the tub used to be on other side of wall, and tub was moved during remodeling but pipes were not changed.

To fix problem:
First of all, turn off shower faucet. Turn on Hot at sink and put ear against shower faucet listening for sound of water flowing through the mixing valve.
If mixing valve is working fine, you need to open wall and investigate more.
For example if you have access door, reach in and feel which pipe is hot.
Pipes might need to be reversed if problem comes up in home inspection, otherwise the problem will not harm anything.

Feb 19, 2011 | Price Pfister Plumbing

1 Answer

I have a humming and knocking that is happening in my pipes. It seems to be related to my hot water heater. I have unplugged the heater and that helps most of it, but there are still times during the day...


Knocking water pipes are caused by air trapped in the pipe. If the pipe only went uphill and horizontal, the air releases out of the faucet and doesn't cause a problem. But if the pipe takes a turn back down, there is an opportunity for the air to remain trapped. Try this ---. Turn on all of your hot water faucets full blast at the same time. Start with the highest faucet farthest from the hot water tank and work your way back to the one closest to the hot water tank. Count to ten, then close them in reverse order. If that doesn't clear the air, then look for a place where the pipe travels horizontally then back down. If such a place is accessible, and if the pipe is copper, buy a self-piercing tap of the type that are used to supply water to an ice maker. Install it and let some water out and hopefully some air out. If you also attach a section of clear hose you and you open the valve very slowly, you will be able to see the air bubbles in the hose. I use just such a setup on my hot-water heating system and it works like a champ. Good luck!

Nov 26, 2010 | Water Heaters

2 Answers

I have a brand new faucet not getting any water pressure? Water Pressure was fine before putting new faucet in. How do i troubleshoot this problem and get my bathroom sink running properly again?


It is very common when you first install any faucet, for the aerator on the very end of the faucet (where the water comes out into the sink) to plug up with rust or sediment. Because you had to turn off water supply, it churns up this sediment in pipes. It initially plugs up the filter/screen in aerator. Just unscrew the end & flush it out with water. Then reattach.

Jun 16, 2010 | Peerless Industries Peerless Chrome...

1 Answer

We have 3 bathrooms, two are close to the rinnai, one is further away. The one that is further away in the early morning fails to get hot. We run the water for 15 minutes and then still sometimes no hot...


chances are that you have a bad faucet that is drawing water from a cold water tap. You will need to have a helper turn on the hot water in that bathroom while you feel the pipes at the water heater and see if they are heating up. If they feel like there is no flow, the water is coming from somewhere and you will need to turn the shut-offs of at various sinks to target the problem faucet. If you find which cold water line is acting up, install a back-flow check valve so the water goes only one way, toward the faucet.

Feb 07, 2010 | Rinnai Heating & Cooling

1 Answer

Hot water coming out of overflow pipe on my vulcan everhot water


Assuming you are talking about the temperatur/pressure relief valve, it is stuck open.

1. Turn off gas or electric to water heater
2. Close water supply to water heater
3. open hot water faucet on nearest fixture to depressurize hot water system.
4. close tpr valve (you may have to push in on the center spine. It may be resistant to closing from sediment. If so, opening and closing several times may solve that issue.

Once you get the tpr valve closed, close the faucet and open the supply valve. If the tpr stays closed, go ahead and turn on the gas/electric and re-light pilot and turn on control etc.

If the TPR blows again, you will need to replace it. YOu can buy a new one at any plumbing supply store. Shut down the heater again, drain a bit of water out using the valve on the bottom of the tank. there is probably copper pipe connected to the TPR valve which you may have to cut or maybe can just unscrew. The TPR threads out of the tank, install the new valve (make sure to use pipe dope or teflon tape.

Jan 04, 2009 | Water Heaters

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