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Posted on Jun 09, 2010
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Cracked water heater

Is there any kind of sealant to plug up a two inch crack in my water heater to save me the expence of replacing the whole heater?

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  • Expert 349 Answers
  • Posted on Jun 10, 2010
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Joined: May 03, 2010
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Clean the crack up and expose clean metal by sanding it or a small grinder. Use JB weld it is a two part mixture that set's up hard as steel. Any hardware store should carry it.
I have fixed gas tanks,glasses and a few other thing's with it.
The main thing the surface has to be clean so the compound get's a grip to the metal. Since you already have a crack the compound will go into crack to get a inside bond.
You may use a small file or sand paper to open up the crack a little by adding a bevel to groove to expose shinning metal to get acurate bond.
Drain tank and let it dry out before attemping to fix.

They make all kind's of JB weld for different types of applications and Lowes or Home Depot will carry it.

Check out this link http://jbweld.net/index.php

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1600 ng hydro. The Water control valve cracked due to heat loss in bldg. Can not find part or how to separate from rest of components.. Any ideas?

Watervalve needs to be replaced....part number is 87070063440, and can be found online.
Its only held in by the water connections and 2 Phillips head set screws(about 1 inch apart) directly underneath the junction of the plastic watervalve and the grey metal gas valve
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Replacement water tank

Copy following links
http://waterheatertimer.org/Leaking-water-heater.html
http://waterheatertimer.org/How-to-install-gas-water-heater.html

Add a comment and say what type heater you have.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

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Water leaking at bottom of cylinder.out side of pipe at bottom.

Depending on age and condition, If you don't see any noticable leaks where pipes are fit on top of the tank, you will more than likely have to replace the heater. Try turning the power off to unit and remove the inspection plate(s) on the side. See if you can tell where the water is coming from. If you see it is leaking around the element(s), you may want to try to remove the element(s) and apply teflon tape or sealant to the threads and re-install, do not over tighten. You may have a crack in the fiberglass tank. Water is leaking down into the metal tank which is a protective cover for the fiberglass tank that stores the water. The pipe at the bottom is probably the drain for the tank. If you are going to try to re-seal the elements, you will definately have to cut the power nad drain the tank first.
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Slight water leak from plastic drain fitting on rheem fury 40 gal gas water heater

You can try to crack it open and get a little piece of crud out of there, I'm sure that is all it is, Just get a tray or something to catch the water, It should stop it, If it gets worse, turn the water off to the heater, then open the valve and hope the bigger piece of crud comes out. It is about all you can do, other than drain the whole thing and take the valve apart and replace the rubber in it. Check it out, Hope this helps.
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Overflow pan fills up quite often. I notice this more in the summer and when I use more hot water, such as laundry day. Is this normal?

NO!! This is a warning sign. Possibly a cracked internal tank. To check, look and see if the water is comming from the sides/seams of the tank. If it is then stop using it immediately and replace the whole heater.

It could also be a leaking drain ****. If the pet-**** (its other name) is l;eaging then it is easy to replace by uncrewing it after first draining the tank. The new one will thread back in its place easily and is readily obtained at any hardware/home improvement store. As in any case, bring in the old part to find the correct replacement.

Good luck!!!!!!!
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