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Originally Posted by Cathar
about 2lbs of force required to stop the flow. I think you need to work on that thumb a bit. 
Can easily stop the flow of my MD30-RZ with my thumb, and it's about 11PSI at dead head.. |
There you have it. Force
I did not use additional force, just holding my thumb
All I can say that it's more pressue then I get here from the tap water. It's the best I got from a pump so far. (but then I need to say that I've only used aquarium pumps, with open impellor)