How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask qwasert Your Own Question

qwasert
qwasert, Plumber
Category: Plumbing
Satisfied Customers: 406
Experience:  Journeyman Plumber
Type Your Plumbing Question Here...
qwasert is online now
A new question is answered every 9 seconds

How do I stop my water heater (gas) overflow pipe from constant

Customer Question

How do I stop my water heater (gas) overflow pipe from constant dripping?
Submitted: 1 year ago.
Category: Plumbing
Expert:  qwasert replied 1 year ago.

qwasert : Hi, Welcome To Just Answer. My name isXXXXX will do my best to help you figure out your problem or the best course of action.
qwasert : How are yo today?
qwasert : Is it the valve in the side or the top of the water heater tank that is dripping? It has a small lever handle on it?
Customer:

The valve on top of the water heater

Customer:

Excuse me. The side.

qwasert : There could be a couple of reasons this valve is leaking. 1) the pressure reducing valve in the house has gone bad. 2) the valve on the tank is warn out and needs replaced. 3) The water in the water heater is exceeding 210 degrees or 150 psi. I recommend buying a pressure gauge and putting it on the drain of the water heater to test the house pressure. On the valve there should be a tag that says the max pressure that valve is rated for.
qwasert : You have a couple of options at this point, if the house pressure is above 150 yet below 170, you can get a new valve for the water heater rated for higher pressure or install a house reducing pressure valve to get the house pressure into a more normal range around 60-75 psi.
Customer:

Well, that didn't get me very far. This was a brand new installed water heater and my old one never did this.

qwasert : It is possible that the old water heater had a higher pressure relief valve.
qwasert : First thing I would do is test the water pressure in the house. You may need to install a pressure reducing valve or replace an old malfunctioning one if you do already have one installed.
Customer:

It was a 50 gallon tank where this one is 40. Should I call a plumber?

qwasert : With it being a new water heater the water pressure in the house is most likely exceeding the safety rating of the valve. The plumber should have checked that for you.
Customer:

So, now what?

qwasert : You can buy a pressure gauge for about $10 at any hardware store that will have a female hose end that will screw onto the bottom drain of the water heater. You can see what your pressure is and that will give you a better idea of what's going on. You definitely want it below 150 psi but a safer range would be closer to 60-75 psi. If it is high you will need to have a plumber come install a pressure reducing valve.
qwasert : This will keep the relief valve from dripping as well as save you from any future pipe bursts that can cause major damage to your house. If the relief valve is stuck open it may need to be replaced as well once your pressure is back at a safer level.
qwasert : Standing By. Can you think of any more questions at this time?
Customer:

I do not see any gauges on the heater. There is a knob for adjusting water temperature & it is low. This can be fixed & should not cost $600?

qwasert : The water heater itself does not have a pressure gauge. It only has a tempature setting and a safety valve that is already leaking. You need to purchase a pressure gauge from a hardware store to test the water pressure to the house. This can be fixed and it should not cost $600. A new T&P valve for the water heater runs about $15-$20 and a pressure reducing valve for the house is about $65-75. Keep in mind that these prices are parts only, extra labor if installed by a professional.
Customer:

What is a reasonable labor charge?

qwasert : Where I'm from labor rate is $60 an hour plus a service call of $50. It all depends on how long it takes to do the job. Generally an hour to install a pressure reducing valve and 30 min to replace a T&P on a water heater.
qwasert : Standing by.
qwasert : Can you think of anything else at this time? You will receive a link back to this chat from you're email should another question arise.
qwasert : I would get a second quote for a pressure reducing valve to drop the city water supply pressure down.
qwasert : We generally charge 175 to 250 to do that.
qwasert, Plumber
Category: Plumbing
Satisfied Customers: 406
Experience: Journeyman Plumber
qwasert and 3 other Plumbing Specialists are ready to help you
Expert:  qwasert replied 1 year ago.
Our chat has ended, but you can still continue to ask me questions here until you are satisfied with your answer. Come back to this page to view our conversation and any other new information.

What happens now?

If you haven’t already done so, please rate your answer above. Or, you can reply to me using the box below.
Expert:  qwasert replied 1 year ago.
Hello, I just wanted to check back with you and see if you had any more questions about you're water leak. Please don't hesitate to ask.
Expert:  qwasert replied 1 year ago.
Hello, just checking back to see if you have gotten you're water leak taken care of and if you have any more questions let me know.
Customer: replied 1 year ago.

I took out the pressure relief valve & installed one with 150 PSI. Now, it leaks (or overflows) only when I use hot water. I just tried turning down the heat adjuster to normal. Pressure from city is 100PSI and I have a pressure relief valve that is 150 PSI. This is a gas tank. Should it leak.

Expert:  qwasert replied 1 year ago.
Hi again. No the tank should not leak during use. Is it still leaking from the valve in the side? If you replaced the pressure relief valve with a brand new 150 psi, and it still leaks you may have a defective valve or there must still be to much city pressure. How did you check the city pressure? Remember this is a safety device and you should never put a plug in it to keep it from leaking. If you're plumber recommended a whole house pressure reducing valve I would think to take that advice as I have not inspected your individual situation personally. I understand the other plumber was expensive however you can get a few bids to do the job and have them check you're water pressure most plumbers will give you a bid for free.
Customer: replied 1 year ago.

I checked the water pressure by putting a gauge on the hose spigot where water comes into house.

Expert:  qwasert replied 1 year ago.
Does you're water heater have a thermal expansion tank on it?
Customer: replied 1 year ago.

No.



I turned the adjustment to normal last night & showered and nary a drop. Might that be the answer?

Expert:  qwasert replied 1 year ago.
If its not leaking now you should be good to go. I'm guessing the water heater temp was to high.
Customer: replied 1 year ago.

Well, it leaked last night, just about twenty drops and this am when I shaved it is still leaking & I do not have "hot" water to shave with.



Now what???????

Expert:  qwasert replied 1 year ago.
You may need to install a thermal expansion tank. There is available a 175 psi pressure valve you can install on you're water heater, this would be available at a plumbing supply house for about $18. If that still doesn't work you are going to need to install a whole house pressure reducing valve. City water pressure can fluctuate depending on use and demand. It could be going above the 150 threshold of your current p&t valve.

JustAnswer in the News:

 
 
 
Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.
 
 
 

What Customers are Saying:

 
 
 
  • You did one super job of explaining to me everything there is to know about this fridge. I'm looking forward to asking you questions in the future. Jimmy Bagley, IA
< Last | Next >
  • You did one super job of explaining to me everything there is to know about this fridge. I'm looking forward to asking you questions in the future. Jimmy Bagley, IA
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C. Freshfield, Liverpool, UK
  • This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!! Alex Los Angeles, CA
  • Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult. GP Hesperia, CA
  • I couldn't be more satisfied! This is the site I will always come to when I need a second opinion. Justin Kernersville, NC
  • Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around. Esther Woodstock, NY
  • Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know. Robin Elkton, Maryland
 
 
 

Meet The Experts:

 
 
 
  • Marc

    Plumber

    Satisfied Customers:

    996
    Plumbing heating & home maintenance contractor
< Last | Next >
  • http://ww2.justanswer.com/uploads/VE/Veillplumb/2011-8-31_155028_IMG1104.64x64.JPG Marc's Avatar

    Marc

    Plumber

    Satisfied Customers:

    996
    Plumbing heating & home maintenance contractor
  • http://ww2.justanswer.com/uploads/plmqwk/2010-08-28_151844_profile_pic.jpg Plmqwk's Avatar

    Plmqwk

    Master Plumber

    Satisfied Customers:

    850
    20+ years in plumbing field. Licensed master plumber, commercial plumbing inspector
  • http://ww2.justanswer.com/uploads/JE/jerrymassie/2011-1-15_45937_1111055.64x64.JPG Jerry's Avatar

    Jerry

    Plumber

    Satisfied Customers:

    777
    over 20 years residential plumbing experience.
  • http://ww2.justanswer.com/uploads/PL/plumber171/2011-8-13_11445_plumber.500x500.64x64.jpg Mario's Avatar

    Mario

    Master Plumber

    Satisfied Customers:

    604
    Master Plumber, Fire Sprinkler, and Jobbing Spec.
  • http://ww2.justanswer.com/uploads/ABSBoss/2009-03-25_163017_2007-1031_046.jpg Bud's Avatar

    Bud

    Plumber

    Satisfied Customers:

    538
    22 Years Field Experience - 17 Years Business Ownership - Residential or Light Commercial
  • http://ww2.justanswer.com/uploads/TH/theplumber717/2011-11-24_34039_DSCF7012.64x64.JPG Theplumber717's Avatar

    Theplumber717

    Plumber, Hvac Tech

    Satisfied Customers:

    520
    Lic Plumbing contractor, 27/yrs res,com,repair,Universal HVAC Tech
  • http://ww2.justanswer.com/uploads/skibum0101/2008-12-16_015819_just_answer.jpg Rick Mather's Avatar

    Rick Mather

    Building Inspector

    Satisfied Customers:

    494
    Assistant Building Official, HVAC Tech