U.S. CitiesCity-Data Forum Index
Go Back   City-Data Forum > General Forums > House
 [Register]
Please register to participate in our discussions with 1.5 million other members - it's free and quick! Some forums can only be seen by registered members. After you create your account, you'll be able to customize options and access all our 15,000 new posts/day with fewer ads.
Jump to a detailed profile or search
site with Google Custom Search

Search Forums  (Advanced)
Business Search - 14 Million verified businesses
Search for:  near: 
 
 
Old 04-09-2010, 03:28 PM
 
472 posts, read 872,301 times
Reputation: 198

Advertisements

I've started to notice that the pipe sticking out of my brick house, from the hot water heater in the garage, is constantly putting out water. Is there some reason why it would put out more water at a constant rate? My water bill isn't any higher and water pressure is still the same....any ideas?
Thanks.
Quick reply to this message

 
Old 04-09-2010, 03:30 PM
 
Location: Lemon Grove, CA USA
1,055 posts, read 2,270,516 times
Reputation: 893
Sounds like the relief valve needs replacing. If it is leaking now who is to say it will actually do its job if/when the time comes.
Quick reply to this message
 
Old 04-09-2010, 03:36 PM
 
Location: Eastern Washington
8,825 posts, read 23,242,151 times
Reputation: 4817
Is the water coming out the pipe hot? If this is really coming from the hot water heater it's a leaking relief valve as stated.

I have never seen this happen myself, *usually* pipes discharging water like this are coming from A/C systems - you sure that isn't the case here?
Quick reply to this message
 
Old 04-09-2010, 03:38 PM
 
Location: Rural Central Texas
3,162 posts, read 5,814,738 times
Reputation: 4415
Ditto on the worn out relief valve. Easy to replace though.
Quick reply to this message
 
Old 04-09-2010, 04:48 PM
 
472 posts, read 872,301 times
Reputation: 198
Yes, the water coming out of the pipe is hot. And no, it is not the A/C, that is a different pipe. Anyone know DIY for replacing it? Or how I find out what part number it is? Thanks.
Quick reply to this message
 
Old 04-09-2010, 05:15 PM
 
Location: I think my user name clarifies that.
8,293 posts, read 14,474,232 times
Reputation: 3665
Yep. Relief valve. No question.

And it's not hard to replace.
Quick reply to this message
 
Old 04-09-2010, 05:31 PM
 
Location: Eastern Washington
8,825 posts, read 23,242,151 times
Reputation: 4817
Quote:
Originally Posted by bgmv90 View Post
Yes, the water coming out of the pipe is hot. And no, it is not the A/C, that is a different pipe. Anyone know DIY for replacing it? Or how I find out what part number it is? Thanks.
Firstly, a lot of relief valves have a manual actuator on them, you could try flipping that a couple of times to see if this clears the situation. If so, you are quite lucky. Assuming that does not work - first take a look at the relief, go buy one similar at any hardware or plumbing supply.

You will need to turn the heater elements off (really just for safety of the elements themselves, no need to ruin them, mostly the upper one I am worried about), and turn off the water supply to the heater. I'm assuming electric, if gas you can just turn the thermostat all the way down.

An idea might be to turn the heater off overnight and let natural leakage drain the level down and heat loss cool things off. Depending on how the exhaust pipe is mounted, you may need to cut it to get the valve off - if so you can put it back together with a union, which should have been there in the first place.

Typically the relief just unscrews like a spark plug. As they say, re-assembly is the reverse of dis-assembly.

Get some Kroil or PB Blaster penetrating oil and put that on the valve threads overnight.

You will probably need a fair size wrench to get it loose.
Quick reply to this message
 
Old 04-09-2010, 05:33 PM
 
472 posts, read 872,301 times
Reputation: 198
Thanks. I will try these things and see if anything works.
Quick reply to this message
 
Old 04-09-2010, 06:25 PM
 
Location: Somewhere in northern Alabama
11,748 posts, read 27,321,510 times
Reputation: 14561
Although that is the most likely suspect, it may or may not be the relief valve. If the house has an anti-backup valve at the meter, and there is no expansion tank or anti-water hammer risers, or those risers are full of water, the heating of the water can create enough rise in pressure to trip the T&P valve for a short period. The draining of the system prior to replacing the valve can restore the air to the risers, so replacing a perfectly good valve may seem to show that it was defective, while the real problem still exists and might come back in a few weeks. A pressure meter at the hot water tank will show if the pressure has risen too high.
Quick reply to this message
 
Old 04-09-2010, 08:05 PM
 
Location: Closer than you think !
442 posts, read 769,371 times
Reputation: 312
When you turn the heater elements off - electric water heater - I do that at the panel box.. Good time to check and see that the breaker is properly marked. Do as M3 outlined but DO NOT TURN power back on until you have turned the water back on and run "hot" thru some fixtures in the house to ensure that all the air is out of the water heater and lines. I did not follow those steps once and had to buy a new water heater because the top element burned out...
If you were going to do this tomorrow - I would turn the power off tonight before the last shower (unless you plan to have company and need lots of hot water). This way you can do the other part of draining the lines to get your water hammer back and even drain the sediment out of the water heater.
Quick reply to this message
Please register to post and access all features of our very popular forum. It is free and quick. Over $68,000 in prizes has already been given out to active posters on our forum. Additional giveaways are planned.

Detailed information about all U.S. cities, counties, and zip codes on our site: City-data.com.


 
Please update this thread with any new information or opinions. This open thread is still read by thousands of people, so we encourage all additional points of view.

Quick Reply
Message:
Over $84,000 in prizes was already given out to active posters on our forum and additional giveaways are planned!

Go Back   City-Data Forum > General Forums > House
Similar Threads

All times are GMT -6.

2005-2014, Advameg, Inc.

City-Data.com - Archive 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25 - Top