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Posted by George on December 12, 2006, 4:17 pm
wrote:
>George wrote:
>
>> wrote:
>>
>>
>>>George wrote:
>>>
>>>
>>>>Our house has a "Craftmaster" gas water heater (c 2000), which acts like
>>>>it has a broken dip tube - the hot water is lukewarm, even though the
>>>>gas does come on from time to time.
>>>>
>>>>I removed the inlet pipe. I can see (and feel) what seems to be a black
>>>>plastic hose extending down from the inlet nipple. It doesn't feel at
>>>>all free.
>>>>
>>>>1. Do I need to remove the (galvanized) inlet nipple to get the tube
>>>>out?
>>>>
>>>>2. Inside the tube, there was a plastic strip, about 4" long, with two
>>>>magnets in it. It was a snug fit, but it pulled out without excessive
>>>>force. What is this?
>>>>
>>>>TIA,
>>>>George
>>>
>>>Yes, you have to remove the nipple, then the dip tube will pull out.
>>>
>>>The plastic strip with magnets sounds like it could be part of an
>>>anti-thermosyphon valve in a "heat saver nipple" used to prevent warm
>>>water (which is less dense than cold water) from climbing upward into
>>>the uninsulated pipes and wasting a little energy during long periods
>>>when hot water isn't being used.
>>
>>
>> Thanks for that. The nipple thing is still confusing. It looks a lot
>> like it's really part of the tank, based on the color and the shape.
>> And, it's recessed below the sheet metal - so much so that I don't see
>> how I could get a pipe wrench on it.
>>
>> Might there be some other construction here?
>>
>> Thanks again,
>> George
>
>Sorry I misunderstood what you were describing as the "inlet nipple", I
>thought you meant a male-male nipple about three inches long, often
>located between the lower half of a pipe union and the tank boss.
>
>Sound like it's got one of those plastic dip tubes which can be "damn
>near impossible" to remove.
>
>Before you go nutso over it, have you ruled out a thermostat problem?
Yeah, well, maybe, did I check the temperature setting? No need to do
that. But, there it was, set to "warm". Oops. Someone must have
broken in and changed it.
At least I didn't break anything.
Thanks for your replies,
George
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