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re: Hot Water Heater dripping at drain valve

Posted on 4/28/16 at 1:59 pm to
Posted by airfernando
Member since Oct 2015
15248 posts
Posted on 4/28/16 at 1:59 pm to
quote:

How do I know its not a pressure problem though and the current drain valve is fine?


get one of these at home improvement store. fits on any outdoor water faucet


Posted by ugasickem
Allatoona
Member since Nov 2010
12308 posts
Posted on 4/28/16 at 2:00 pm to
PRV valve, and pressure is too high where water enters the house. Also need an expansion tank. Call a plumber if you aren't handy at soldering. 300-400 is a guestimate.
Posted by SpeckledTiger
Denham Springs
Member since Jul 2010
1482 posts
Posted on 4/28/16 at 2:03 pm to
quote:

This sounds easy. How do I know its not a pressure problem though and the current drain valve is fine?


The new drain you just installed still leaks. Seriously, you have a plumber in here trying to sell you "complicated" plumbing diagnostics. There's no need for that. Replace the drain valve, and if you have to call a plumber to replace the pressure valve you're only out $10 and a couple of hours time. Doing it his way, you are out at least $200. Plumbers won't show up for less.
Posted by Bloodworth
North Ga
Member since Oct 2007
4255 posts
Posted on 4/28/16 at 2:45 pm to
quote:

The new drain you just installed still leaks. Seriously, you have a plumber in here trying to sell you "complicated" plumbing diagnostics. There's no need for that. Replace the drain valve, and if you have to call a plumber to replace the pressure valve you're only out $10 and a couple of hours time. Doing it his way, you are out at least $200. Plumbers won't show up for less.


Thanks ... sounds logical.
Posted by Napoleon
Kenna
Member since Dec 2007
74221 posts
Posted on 4/28/16 at 2:53 pm to
quote:

So fricking dumb



It's a peace of mine that people here trigger on that. A water heater can be called a hot water heater. The water inside of it is always hot, it heats up hot water and adds in cold water, but the water in the heater is always hot.

Posted by ItFliesItDies
NO MAN's LAND
Member since Apr 2011
1246 posts
Posted on 4/28/16 at 2:55 pm to
Because it wouldn't be leaking
Posted by Napoleon
Kenna
Member since Dec 2007
74221 posts
Posted on 4/28/16 at 2:56 pm to
Is the valve at the bottom leaking?

Then you just have to replace the drain valve, hard water sediments can cause leaking in valves over time. Can get even worse if your sacrificial anode is bad.

If it's leaking from the valve at the top or side then it's a pressure issue or a bad expansion valve and then you may need to call in a pro.

Posted by diablo blanco
Oakdale, Louisiana
Member since Dec 2007
1112 posts
Posted on 4/28/16 at 3:39 pm to
I have a 30 plus year old gas water heater that started leaking from the pressure release valve a year or so ago. I was able to turn it off, drain it a bit and replace the valve myself without much trouble. However, I was ready to replace the whole unit, since it is that old anyway.
Posted by Goalman34
Ruston, LA
Member since Sep 2013
512 posts
Posted on 4/28/16 at 3:41 pm to
quote:

It's a peace of mine that people here trigger on that. A water heater can be called a hot water heater. The water inside of it is always hot, it heats up hot water and adds in cold water, but the water in the heater is always hot.


If the water inside is always hot, the. Why do you need to heat it?
Posted by Murtown
OT Ballerville
Member since Sep 2014
1784 posts
Posted on 4/28/16 at 3:52 pm to
My mind is alllwayyysss peaceful mannnn
Posted by southern686
Narnia
Member since Nov 2015
1064 posts
Posted on 4/28/16 at 4:02 pm to
First you need to see if its the Pressure relief valve or the actual drain valve. Go check.

Is it dripping at the pressure relief (midway up tank)?
or is it dripping from the drain valve into the catch pan at the bottom of tank?

The pressure relief valves beginning to drip/leak is normal over years. I'v changed many. Inside the that valve is a spring, overtime It fatigues holding pressure back and slowly lets the valve creep open. It does not mean the tank is "over pressured" although its possible normally its just fatigue.

You don't see drain valves leaking often because they are rarely used or moved. Its possible and could maybe just use a quick tighten if that's the case.
Posted by White Roach
Member since Apr 2009
9666 posts
Posted on 4/28/16 at 4:25 pm to
The drain valve will be located at the bottom of the tank and is typically a gate valve (it looks like most exterior water faucets). It's pretty simple to replace, especially if it's threaded, not soldered.

If it's the PRV leaking, it might be trickier, because it's probably a sweated joint. Sometimes on the side of the tank, it's often on top. The PRV assembly usually has a slotted end that you can turn clockwise to tension the internal spring or packing, which can stop a small drip. If you're losing a gallon a day, this probably won't work.

You should be smart enough to assess your problem, and you'll know what you can handle mechanically and what you shouldn't mess with. If you're a handy person, you can probably handle this problem.

Make sure you have the water supply line valve closed and turn off the power. If you power up an electric water heater before you refill the tank, learning to replace the heating elements will likely be your next project. Good luck!
Posted by OweO
Plaquemine, La
Member since Sep 2009
122093 posts
Posted on 4/28/16 at 4:26 pm to
Heating hot water?
Posted by learnthehardway
B.R./Northshore
Member since Oct 2007
10023 posts
Posted on 4/28/16 at 4:49 pm to
Post a picture
Posted by jrodLSUke
Premium
Member since Jan 2011
26229 posts
Posted on 4/28/16 at 4:57 pm to
quote:

It could be that the pressure relief valve is spitting water
Posted by Gevans17
Member since Dec 2007
1135 posts
Posted on 4/28/16 at 5:59 pm to
turn breaker off? did he say is was electric?
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