water pressure

[WaterGIS]

Hi all
I have conduct a water pressure test using digital pressure logger.
The pressure gage gave me about 16-17 bar, though when I open the water to go out free it doesn't rise more than 1 meter. It really confused me. The pressure gage is calibrated and we did tests in different places and gave out the accurate result.
Dose any one knows what might be the problem.
Regards,

 

[JStephen]

See my response on your identical post in "Water Treatment and Distribution" forum.

 

[WaterGIS]

Hi
We are measuring water in the distributing network the diameter of the pipe is 3/4 " galvanized pipe, we place the pressure gage on a taping point. The water rise in the air freely without any tube but it is very weak. As I told you before (less than one meter).
Regards,