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Old 02-05-2012, 09:17 PM   #16
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what can handle hot water expansion?


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Already did that
sorry Ishould read better before speaking...thanks

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Old 02-05-2012, 09:20 PM   #17
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what can handle hot water expansion?


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sorry Ishould read better before speaking...thanks
No biggie ben
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Old 02-06-2012, 11:45 AM   #18
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what can handle hot water expansion?


What is the pressure gauge reading at around the time the water heater pressure/temp relief valve trips?

Could there be a check valve in the water softener so pressure downstream is not relieved via the blue pressure tank?
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Old 02-07-2012, 09:04 AM   #19
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what can handle hot water expansion?


I saw the pressure switch was kicking on at 40psi and cutting off at a little above 60. the switch has a note saying it should be 30-50. I adjusted it with the screws to kick in at 30 and stop at 50.

After taking a shower, I looked at the hot water heater and it was expelling water when that gauge by the expansion tank read 35psi.

The pictures that I provided are off all the plumbing parts between the well and the hot water tank. After the filter, its just copper t's and pipe. then the hot water tank.

Also after the water come out of the hot water tank relief valve, it seemed the pressure increased a fair amount for a second after turning on the hot water after turning on the cold on my tap.

I am not sure about anything having a check or one way valve, but I can but everything on bypass and try it.

Last edited by da_man; 02-07-2012 at 09:06 AM.
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Old 02-07-2012, 07:17 PM   #20
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what can handle hot water expansion?


Did a small amount of research on water softeners and it is possible that some kinds require a check valve to prevent water from going through backwards. IN that case an expansion tank is needed above the water heater.
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Old 02-09-2012, 11:33 AM   #21
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what can handle hot water expansion?


I emailed the makers of the water softener and am awaiting their reply, probably will have to call them.

I was wondering if sediment in the tank could cause this problem. I was hearing boiling or some type of water movement in the tank a couple days ago. I didn't hear it yesterday, but hear ticks even after the water heater is off. Yesterday, I noticed that the relief valve ejected water like 2-3 minutes after the water heater stopped heating. It was still making the ticking noises then. Also If I use my 75gal water heater for a shower, I have to keep adjusting it to go hotter as time goes on.
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Old 02-09-2012, 12:23 PM   #22
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what can handle hot water expansion?


Sediment in the water heater tank won't make a difference regarding water expansion. To prolong the life of the heater this sediment should be drained out every 6 months or so, usualy it takes one or two gallons to get most of it out.

Sometimes but not always the temperature dial on the water heater may become inaccurate as the heater gets older.
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Old 02-10-2012, 09:02 AM   #23
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what can handle hot water expansion?


I hooked up a pressure gauge to the water tank and let the pressure build up a bit. I first turned my water filter to bypass, checked the gauge and realized that it went from 65psi to 40psi.

It seems like the GE water filter I got has some sort of one way valve. I am going to have to replace it at some point. Is this common?


I want to thank those who replied, I learned a lot about plumbing, expansion and components. I am sure if there is ever a problem in the future, I should be able to figure it out much quicker. I am just glad I don't need a new expansion tank or hot water heater yet.

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