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Old 01-06-2017, 07:01 PM   #1
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Calcified water heater anode rod


Our gas water heater is about 4 years old. I learned about replacing the anode rod to extend the life of the tank, so I decided to take a look at the condition of it. I had to use an air impact wrench to break it loose, but here's what it looked like. Our city is notorious for hard water, so it's no surprise.

I replaced it with one of those flexible segmented rods since the space was too tight. I had to cut the old one out in pieces.
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Old 01-06-2017, 07:25 PM   #2
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Re: Calcified water heater anode rod


OK, so have a water test done the see if you need a water softener.
Hard water is going to destroy anything down line from the incoming line.
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Old 01-06-2017, 07:43 PM   #3
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Re: Calcified water heater anode rod


Thanks, I wasn't really asking for advice, just showing how bad it was. I'll look into getting the water tested though.
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Old 01-06-2017, 07:49 PM   #4
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Re: Calcified water heater anode rod


Did you flush out the corrosive sediment from the bottom of the tank?
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Old 01-06-2017, 07:50 PM   #5
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Re: Calcified water heater anode rod


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Did you flush out the corrosive sediment from the bottom of the tank?
I'm going to tonight. I was waiting a while for it to settle.
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Old 01-06-2017, 07:53 PM   #6
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Re: Calcified water heater anode rod


We own three homes and none of them have an anode rod that looks that bad.
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Old 01-06-2017, 07:58 PM   #7
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Re: Calcified water heater anode rod


I found a report from the city that states that their softening process brings the water down to a hardness of 160-180 ppm CaCO3. Not sure if that's high. Some scales show that it's normal, others say that it's high.
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Old 01-06-2017, 07:58 PM   #8
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Re: Calcified water heater anode rod


Why wait?
Water heaters need to be flushed every 6 months to flush out the solids in the bottom of the tank, almost no one ever does.
Never done it, cheap plastic valve then go buy a garden hose cap because it's not going to shut off all the way.
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Old 01-06-2017, 08:01 PM   #9
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Re: Calcified water heater anode rod


Get a real test done, it's not in there interest to so the real results.
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Old 01-06-2017, 08:07 PM   #10
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Re: Calcified water heater anode rod


If your tank has a plastic drain valve, I'd replace it with a brass one or a custom ball valve drain spigot. The plastic port type drain valve clogs very easy.
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Old 01-06-2017, 08:20 PM   #11
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Re: Calcified water heater anode rod


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If your tank has a plastic drain valve, I'd replace it with a brass one or a custom ball valve drain spigot. The plastic port type drain valve clogs very easy.
Yep, it's plastic. It's worked ok so far but I'm expecting it to snap off one of these times. Do you just drain the tank and unscrew it and screw on a brass one?
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Old 01-06-2017, 08:26 PM   #12
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Re: Calcified water heater anode rod


Yes, but they are pretty tight. I think they use a thread glue like Loctite on them.
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Old 01-07-2017, 09:43 AM   #13
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Re: Calcified water heater anode rod


If you replace the valve do yourself a favor and use a 3" brass nipple, a ball valve, then a garden hose adapter.
Pay attention when installing the valve to make sure the handle has room to swing open.
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