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Question DetailsAsked on 3/26/2012

no hot water in shower

hot water supply started dwindling and now it's lukewarm at best after 10 minute shower. my husband drained water heater but that didn't help. what's the next thing we should try?

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1 Answer


I'm guessing that the anode rod in your water heater has fully corroded and has caused the cold water "dip tube" to corrode and partially disentegrate. The dip tube gets the cold water to the bottom of the water heater where it will be heated and then rise to the top where the hot water outlet pipe draws it out. If the dip tube has corroded away, then the cold water will be dispersed at the top of the heater where it will be quickly sucked into the hot water outlet pipe, without being heated.

The anode rods are meant to corrode themselves and attract all the corrosion, so that it won't attack the other components inside the water heater. Once the anode rod disintegrates, the other components, including the walls of the water heater, also begin to corrode.

I recommend removing the anode rod. if you find that it has disintegrated, then replace it. You should also remove the dip tube. Replace it if it is corroding.

Answered 8 years ago by JGHamm

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