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Old 01-23-2011, 02:11 PM   #1
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Water Heater Not Draining


A Kenmore "PowerMiser 12" installed 03/06.

Here are some PICS and an explanation of the problem.





Drain valve gradually stopped working. Obvious sediment build-up but where to go from here?

Did all the prelim...turned off gas, shut water input, opened pressure relief valve and a house hot water tap,etc...

As you can see I removed the top of the valve. This was with a full tank. I tried running a "bailing" sized piece of wire up it to dislodge the corrosion but it did little and met little resistance at all. I then hooked another short hose to where I removed the valve stem cap. I then preceded to pinch off the lower hose and blow air pressure into the newly attached top short hose. It gurgled and I could hear the tank bubbling from the air. I then stopped the air, raised the upper hose, and the lower hose would surge a bit, belch a few chunks (lower photo) and stop draining.

This will be a long day if I have to babysit it like this.
Where would you go from here?

Would removing this plastic valve and putting in a brass ball valve help?
Still how to get the water draining/flowing?

Is this drain valve at the bottom or does an internal pipe run somewhere?
thanks

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Old 01-23-2011, 06:03 PM   #2
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Water Heater Not Draining


Okay I got "lucky".
Removed the old valve without breaking it!:



Installed a way better option with many times more flow (for the big chunks):



Now draining much better:



Now I need to find out how to flush the corrosion out.

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Old 01-23-2011, 07:11 PM   #3
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Water Heater Not Draining


turn the water on to the water heater and a lot of that crap will wash right out . you may have to run that wire up into the valve to dislodge all of it.
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Old 01-24-2011, 11:16 AM   #4
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Water Heater Not Draining


Do you have a hard water issue?
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Old 01-25-2011, 07:29 AM   #5
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Water Heater Not Draining


That the old gas flex line you reused in 06?? there was a recall on them.
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Old 01-25-2011, 07:31 AM   #6
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Water Heater Not Draining


If that 'sediment' was plastic, it's what left of your dip tube.
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Old 01-25-2011, 07:41 AM   #7
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Water Heater Not Draining


Quote:
Originally Posted by Jacques View Post
That the old gas flex line you reused in 06?? there was a recall on them.
Thanks for that heads-up!!
I will get it changed out pronto.

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Old 01-25-2011, 07:42 AM   #8
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Quote:
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If that 'sediment' was plastic, it's what left of your dip tube.
No it was a brittle calcified substance that turned to powder when easily crushed between the fingers.


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Old 01-25-2011, 12:03 PM   #9
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Water Heater Not Draining


That full flow ball valve that you installed is the first thing I install when I install a new water heater.

Brass nipple
3/4" threaded ball valve
3/4" MIP to 2/4" male hose adapter

Every 6 months or so. I hook up a hose and open the valve to blast out the sediment. I leave the water on to blow out under pressure.

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