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Old 09-29-2011, 11:39 PM   #1
djmikmik
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Default Gas water heater - to drain or not to drain - Advice needed

Hi,

I have a gas water heater that was part of a new house that was built in 2003. It has never been drained before,

An employee from Lowes told me that since it is relatively old and was never drained before I should probably NOT try to drain it as it can create damage to the heater.

Any insight on his advice? appreciate your feedback!

Mickey



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Old 09-29-2011, 11:56 PM   #2
johnjh2o
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The heater is at the age when most fail. (seven to ten years) I don't think I would drain it.

john



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Old 09-30-2011, 11:30 AM   #3
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I am curious to know why draining the tank would cause damage.

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Old 09-30-2011, 12:51 PM   #4
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Do to the age of the tank and not ever being drained the sediment in the tank may be preventing the tank from leaking.
Most people are under the impression that you turn the water off then drain the tank. What should be done is connect a hose to the drain on the tank and without turning the water off open the drain and let it run until the water from the hose becomes clear. This uses the water pressure to flush the sediment from the tank. After that has been done then you drain the tank.

John

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Old 10-04-2011, 02:00 PM   #5
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Quote:
Originally Posted by johnjh2o View Post
Do to the age of the tank and not ever being drained the sediment in the tank may be preventing the tank from leaking.
Most people are under the impression that you turn the water off then drain the tank. What should be done is connect a hose to the drain on the tank and without turning the water off open the drain and let it run until the water from the hose becomes clear. This uses the water pressure to flush the sediment from the tank. After that has been done then you drain the tank.

John
We just had a new water heater installed a couple of months ago. There was so much sediment that they had to drain it from the top to remove it.

How often should a water heater be flushed? every six months? once a year?
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Old 10-04-2011, 02:29 PM   #6
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Depending on water condition once or twice a year. You should be able to tell how bad it is by the amount of sediment that comes out when flushing. Try it every six months, if it's not to bad then go to once a year.

John

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Old 10-05-2011, 05:03 PM   #7
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Maybe also consider a sediment filter?

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Old 10-05-2011, 08:42 PM   #8
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the best thing to do is only buy water heaters with a self-cleaning, vortex system, which eliminates the need to drain to remove sediment.

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Old 10-05-2011, 09:01 PM   #9
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From what I have seen all a self-cleaning heater is they have a dip tube that makes a turn at the bottom of the tank. The theory is to spin the water as it enters the tank. My question is where does the sediment go? I would think flushing it from the tank would be more effective. Just my opinion.

John

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Old 10-08-2011, 03:20 AM   #10
djmikmik
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John,

Thanks for replying to my original question.
So in this case should I connect a hose without turning the water off and perform the cleaning? or should I leave my gas heater intact?


Quote:
Originally Posted by johnjh2o View Post
Do to the age of the tank and not ever being drained the sediment in the tank may be preventing the tank from leaking.
Most people are under the impression that you turn the water off then drain the tank. What should be done is connect a hose to the drain on the tank and without turning the water off open the drain and let it run until the water from the hose becomes clear. This uses the water pressure to flush the sediment from the tank. After that has been done then you drain the tank.

John


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