pex- well line suction?

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Old 03-27-14, 10:02 AM
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pex- well line suction?

Does pex collapse under suction?

I may be moving a shallow well jet pump in my basement to the other end and would perfer to do it without joints?

Can I use 3/4 pex connected to the exterior line, or will is collapse under 30-50 psi suction from the pump?
 
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Old 03-27-14, 10:49 AM
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I don't think you will have any trouble with the PEX collapsing.

There is no such thing as 30-50 psi of suction on planet Earth. The most "suction" you can ever have on Earth is about 14.7 psi. This is why all pumps are limited in the height they can suck water and none can draw water higher than about 33.8 feet. Pressure is unlimited so pumps can pump water at great pressure and up to great heights but they are all limited by vacuum pressure on the suction side.
 
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Old 03-28-14, 06:15 AM
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The most "suction" you can ever have on Earth is about 14.7 psi. This is why all pumps are limited in the height they can suck water and none can draw water higher than about 33.8 feet. Pressure is unlimited so pumps can pump water at great pressure and up to great heights but they are all limited by vacuum pressure on the suction side.
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