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 Patrick Your Own Question

Patrick
Patrick, General Contractor
Category: Plumbing
Satisfied Customers: 2429
Experience:  30 years commercial construction and 23 years house remodeling projects
Type Your Plumbing Question Here...
Patrick is online now
A new question is answered every 9 seconds

My pipes make a loud banging noise when we run hot water in

Customer Question

My pipes make a loud banging noise when we run hot water in certain parts of the house, when I say loud I mean like jack hammer loud. Did not do this the first 2 years and now in the 3rd year. is this maybe a pressure problem I can fix?
Submitted: 5 years ago.
Category: Plumbing
Expert:  Mario replied 5 years ago.

does it make the noise when shut off or when turned on?

is it after the water runs for a second or two ?

and what fixture does it make the noise at and witch ones does it no?

and last do you have a water heater or a coilin the boiler

Customer: replied 5 years ago.
I am new at this so do not let me screw up your money. All fixtures do it after yes a couple of seconds. Some like my bathroom will be fine until the water warms up at that fixture. I have noticed that the larger fixtures buch as shower, clothes washer do not do it near as often as my sinks and dish washer. This is a 1300 sq ft home not big and not old. Gas water heater, and 3 sinks, 2 showers, 1 dish, 1 clothes. It does not happen when water is off.
Expert:  Mario replied 5 years ago.

lets fix your plumbing first , then we will talk money lol

 

ok lets plumb

 

do you have a pressure reducing valve on your water main or a double check valve . some times thease devices will make this noise throught the house when water is used usualy when any water is used but i have seen it when water goes into the heater and through a few valve or through heat traps ( special nipples on water heaters ) the pressure get reduced just enough to cause a bouncing of the diphram or washer in thease items

Customer: replied 5 years ago.
ok its about to get dark but i went out to the meter in the ground in front yard and the gauge showed fluctuation between .625 to .800. during operation of clothes washer and then I had other person turn on hot water and it imediately went to 0 which is in the 12oclock position on this gauge. does this help?
Expert:  Mario replied 5 years ago.

lol not realy

 

but in your meter pit you have a meter and thats it do you see another device that looks big and brass like with ports on it

Customer: replied 5 years ago.
no just one line in to the meter and one going out of the meter
Expert:  Mario replied 5 years ago.
where it comes into the house there is a valve is there anything after the valve
Customer: replied 5 years ago.
possibly, how much longer will u be on here bcause I have to go outside and im eating right now
Expert:  Mario replied 5 years ago.

i tell you what if i am gone i will back tomarow after 5:00 if you can wait if not any other expert can help if you wish

 

enjoy your diner

Customer: replied 5 years ago.
I looked all around the house and cannot see where the water comes in to the house so that leaves me to believe it comes in thru the crawl space. I dont do crawl spaces. Foot in mouth I guess you are probably gonna tell me it's under there right. If you could tell me how to fix anyway and I can get one of my employees to do it. They are gas fitters and I am actually a Master Gas Fitter, on paper anyway. If you wanna check my company out the site is www.accesshomespecialty.com.
Expert:  Patrick replied 5 years ago.
Give this a try if you do not find a pressure reducing valve and do not have apressure tank on your water system:
Typically that is water hammer. Water pressure in your pipes is too high
You may need to allow your water arrestors to recharge. In some residences, pipes rise above the tee in order to trap air so that water does not "hammer" when turned on or off. Try turning off the water at the valve into your house. Open the hose bibbs, sink, bath and shower faucets and allow the cold water to drain out. Once drained, turn off the faucets and hose bibbs and turn the water supply valve back on. Start at the closest faucet to the water supply valve and turn them on throughout the house moving from closest to farthest. Air should sputter from each as you go. When you have all of the cold water running, air should be trapped in any arrestor pipes. Turn off the all faucets. Air should now be trapped in the arrestor pipes, softening the noise when water is turned off. If you do not have riser type arrestor pipes you may have cartridge type water arrestors. These are typically in the wall and are hard to get access to. The riser type water arrestor pipes can typically be seen in the attic running straight up 12" to 18" above the pipe tee dropping down the wall to your tub. Good luck. Also, check that your pipes are anchored. That would be pipe straps that hold the pipe down to your framing. Good luck.
Patrick, General Contractor
Category: Plumbing
Satisfied Customers: 2429
Experience: 30 years commercial construction and 23 years house remodeling projects
Patrick and 4 other Plumbing Specialists are ready to help you

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