Hot water in the kitchen, but not in bathrooms!


  #1  
Old 01-17-13, 08:01 PM
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Hot water in the kitchen, but not in bathrooms!

When I first moved in, I didn't have to shift the water temperature dial in my shower for the duration of my shower.

Soon after, I noticed the temperature getting colder every few minutes, requiring me to increase the dial gradually throughout my shower, until it was all the way at the end (hot side) and the water was cold, which was the end of my shower.

I opened the water heater and noticed the temperature set at "hot". I increased it to "very hot". The problem was solved.

So I thought, after some time had passed, the same problem started all over again. As a test, once all the hot water ran out in the shower, I tested both of my bathroom showers and sinks, and they were all out of hot water. However, my kitchen sink still flowing hot boiling water.

What's going on here???
 
  #2  
Old 01-17-13, 08:06 PM
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A lot of variables...

Some issues...

Thermostatic shower valves??? Possibly bad...

Recirc line? Bad check valve.....

Dip tube? Would have short showers....
 
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Old 01-17-13, 08:29 PM
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I did some additional testing and looks like the kitchen also goes cold after a few minutes, syncing up with the bathrooms. I have a 67 gallon water heater and I live alone. Could I be using it all up in a 30 minute shower? As I said before, this started happening after some time. Does that reduce the number of variables?
 
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Old 01-17-13, 09:09 PM
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Best bet is to do a bucket test....

Wait for the heater to kick off and make temp...

Then get a 5 gallon bucket and go to a tub. Fill the bucket with hot water.

Keep filling and dumping until the water starts to cool. Then post back how many buckets it took.

This will tell if its the dip tube. ( Should get around 10 buckets 50 gallons)

Note: A 30 min shower @ 2.5 gpm = 75 gallons. Yes you can run out of hot water...
 
 

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