Interesting. I cannot remember there being a check valve after the output of my water pump. If there was one, I would not have had 2 pump failures due to back flow pressure from the water heater. When I changed out my pump, there was water flowing back from the water heater. I am led to believe that the check valve is in the water pump. It is raining tonight so I will try to take a look tomorrow to be sure. As you know I have been wrong several times. Chuck B
Don & Vicki Leith <dleith@escapees.com> wrote:
Chuck,
Incorrect. The pressure is against the check valve which is after the pump
discharge. Without a check valve the pressure just made by the pump would
bleed back into the water storage tank.
Don Leith
> CORRECT Jim,
> Sometimes the air head space in the top of a water can go away and be
> replaced with water. When water is heated, it expands. If there is no
> air space to expand, it has to go somewhere. Ever see a weeping PTR valve
> leaking water? Re establish the air space in the tank and the weeping
> stops. If one does not have a accumulator tank, the pressure is then on
> the water pump. Chuck B
Chuck & Mary Boros
04 Windsor 02 Ford Ranger
Shelby Dog, Miss Kitty, Mr Lucky Cat
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