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billvasko 05-31-2008 10:11 AM

Water pressure and temperature
 
I have a problem with our water temperature and water pressure throughout the house. The pressure rises and falls as the pump from our well runs. As the pressure changes, so does the temperature of the water. When the pressure is at its lowest, the water is really hot and when the pressure is at its highest, the water is really cold. The temp is more moderate in between cycles. To say the least, it makes for a miserable shower. This problem started about a year ago but was really minor, but it has greatly worsened over time. This problem affects all of the water outlets. I checked the pressure in the tank a with a tire gauge and it matches the reading on the gauge at the switch. No one has been able to give me any ideas of where to start. The pump? Tank? Switch? Or is this a water heater issue? Thanks!........

Alan 05-31-2008 01:40 PM

I would say, that your pump shouldn't have anything to do with the temperature of your hot water. Your pump simply pressurizes the lines, and as they are all connected, it shouldn't pressurize any side of the system different than the other.

Do you experience this at every fixture in the house, or only at the shower?


I'm not really sure on this one, the only thing I can come up with is that perhaps your water heater is really old, and the outlet nipple is corroded closed? Maybe the dip tube is gone, and as pressure increases, you experience more mixing in the top of the water heater instead of all the cold going all the way to the bottom?

Hopefully someone else will chime in here.

billvasko 05-31-2008 03:26 PM

I experience the change in pressure at ALL of the fixtures in the house. It's not as easy to assess changes in temp at every fixture as it is in the shower.

8 Ball 06-01-2008 07:05 AM

Check your Extrol or expansion tank, sounds like the diaphram may be ruptured.

wirenut1110 06-01-2008 08:00 AM

What 8 ball said, but make sure you check the bladder air pressure after turning the pump off and the water drains down. I believe the bladder pressure should be about 2 psi beleow the cut-in pressure.

BillyD 06-01-2008 09:05 AM

Just monitor your pump. If it turns on and off,on and off it is water logged.The bladder is bad and your electric bill will also go up.

Alan 06-01-2008 11:27 AM

I don't see how a busted bladder would cause the temperature to change. Not only that, but there is no mention of the pump running oddly.

There will ALWAYS be a noticeable change in pressure when you are on a pump system. Sometimes less, sometimes worse, depending on how your switch is set.

wirenut1110 06-01-2008 11:49 AM

True Alan, I didn't realize the OP was talking about the hot water. After a second look, it looks like they are talking about the hot. Being that the OP is on a well, it could be as simple as flushing the water heater out, especially if they have a sediment issue or iron. But now it seems like the issue is with the heater.

billvasko 06-01-2008 04:24 PM

I do have a bit of a sediment issue, so I was looking thru other threads about flushing the hot water heater--it makes me a little nervous to do that because I am not the handiest person. Will sediment in the hot water heater affect the temp AND the pressure???

billvasko 06-02-2008 09:23 AM

Will a problem with the water heater cause problems with the pressure, or just temp?


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