Question about Home

3 Answers

Plumbing - no cold water from cold water tap

I can not get cold water from my bathroom sink cold water tap. It will come out luke warm. I checked the washer and the hot water is not bleeding into the cold water line. I had someone look at it and they said the cold water line must be near the hot water line which produces the luke warm water instead of cold water. He said there was nothing he could do about it. However, my apartment neighbor does not have this problem. I would have to run the water for about 2-3 minutes to get it to cool down but then it doesn't stay cool for long. Why would the cold line water be luke warm?

Posted by on

  • Dave Mike Fetterman Nov 08, 2012

    Hey debi Fetterman did you ever figure out that warm-water coming outta yer cold water tap, Lil'd?

  • Anonymous Mar 18, 2014

    The tank is leaking at the base and the tap is spitting and spluttering



3 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.


    An expert who has written 50 answers of more than 400 characters.

  • Expert
  • 171 Answers

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 before you sign off
Thank you,
Harvey your Master Plumber

Posted on Sep 14, 2008

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 5 achievements.


    An expert who has written 20 answers of more than 400 characters.


    An expert who has answered 20 questions.

  • Expert
  • 83 Answers

Does the cold water pressure appear less than the hot water pressure?

If so, it is possible that the hot water is bleeding into the cold water particularly if the hot water pressure is higher than the cold.

Could the outside mains water tap have been turned down reducing the cold water pressure?
Is the hot water temperature high enough to cause higher pressure?

Could there be rusting in the main or cold water pipe causing restriction?

Posted on Sep 14, 2008

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

More than likely its to do with the pipes being in direct sunlight causing pipes to warm water,or they may be inside a wall wich faces the sunlight doind the same.your nieghbours pipes may be longer than yours allowing it to cool by the time he recieves from tap. some sort of shading on pipes or wall may help with your prob. good luck

Posted on Sep 14, 2008

1 Suggested Answer

  • 2 Answers

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

a 6ya Repairman can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Repairman (only for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

I have a single faucet Koehler for the kitchen sink. Cold and warm water are fine. When I turn it to hot, there is a tapping sound and the water spits out instead of a steady stream.

Simply check to make sure the valve under the sink is fully opened. Or u may have to remove the hot supply to check if it clear if debris.

May 30, 2017 | Plumbing

1 Answer

I have hot water in kitchen and Luke warm water in bathroom Combiboiler

Check it out. Possibly a separate instant hot water
heater under the sink area.

Good luck


Feb 07, 2017 | Water Water Heaters

1 Answer

Can I clean the valve to remove sediment?

when this problem presents I consider that the problem is in the weak tap stopper /seat
they can break down ,become enlarged and not move of the tap seat to allow full flow
that is the first check I would be doing

Mar 02, 2015 | Grundfos Pumps Grundfos Comfort System...

1 Answer

Warm water in shower and cold in sink

How long has this been like this? Have you replaced any faucets, or have you installed a new water heater recently?

Jan 17, 2013 | Home

1 Answer

Air in bathroom cold water pipes

You have to install anti knock pipes into your plumbing, it's quite common. Go to the local home center you can by pre made or make your own as I did when remodeling my basins. Good Luck..

Oct 20, 2012 | Home

1 Answer

Getting really hot water to the kitchen but only tepid hot water into the bathroom and ensuite. Do not need to put on the cold tap at all in the bathrooms but you can't hold your hand under the tap in...

If some taps have really hot and others luke warm, then you might have defective mixing valve, check valve, or crossover on single handled faucet.

Crossover can also cause stacking event. Stacking could be part of puzzle.

Once crossover or check valve or mixing valve problem is solved, if you have really hot water to some taps, then turn down thermostat to avoid scalding.

Add a comment for more help.

Jun 13, 2011 | Rheem 40 GAL ELEC TALL Water Heater 6YR SC...

1 Answer

When I turn on the cold water tap in the Bathroom Sink the water comes out in a very slow drip or not at all, the CW bath tap is ok

Confirm that the shut-off valve under the sink is open all the way. If it is, then close it and remove the cold water tap. If this is a single handle tap you will of course have to turn off the hot water shut off under the sink too.
With the tap removed and a bucket and towel handy, open the cold water shutoff just a little bit. If water comes rushing out, the problem is obviously with the tap. You may be able to clean or repair it, or you may have to replace it.

Mar 19, 2010 | Home

1 Answer

I have installed a 4 gallon inline water heater close to the bathroom. The main hot water heater is at the other end of the house. Now the hot water in the bathroom runs luke warm when the washing machine;...

you don't have a circulating line in it,, there for it is pulling the hot only,, when you have the 2 systems you have to have it circulationg or take 1 out, it being it is hot water they will vapor lock,, meening no hot water , you could get a circulating pump that actually hooks to the cold and hot side under the sink far away from the water heater and it has a timer on it that will circulate the water at certain times of the day,,, this would solve your problem

Jul 02, 2009 | Jacuzzi RapidHeat In-Line Heater U395000 [...

1 Answer

I have a two year old american standerd singel handel faucet Two

Yes, change the cartridge, it sounds like the cold is bleeding into the hot.

Jun 03, 2009 | Oceana 009009022 Udermount Kitchen Sink-...

Not finding what you are looking for?
Home Logo

Related Topics:

3,740 people viewed this question

Ask a Question

Usually answered in minutes!

Top Home Experts

Donni Steen

Level 3 Expert

659 Answers

Tom Chichester

Level 3 Expert

38003 Answers

Brad Brown

Level 3 Expert

16415 Answers

Are you a Home Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides