For those that can watch the short video his concept is pretty cool for us back yard engineering types, I haven’t seen this method yet for a simple flow bench idea.
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Checking head flow by vacuum
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For those that can watch the short video his concept is pretty cool for us back yard engineering types, I haven’t seen this method yet for a simple flow bench idea.
Never seen this before, don't know what to make of it, but I clicked on the "play" button to watch what was posted. I got a pop-up requesting for someone to track where I'm at. I clicked "deny" and the video instantly stopped. This is strange!!
That is strange sorry it’s probably China wanted to track us I’m sure, probably started as a TikTok video. Did you at least see how the buoyancy tube was measuring by the vacuum I found that kind of interesting.
Try this one
Unconventional
Well-Known Member
Would have been nice to see where the ends of his metering tube were placed 
I think @MOPAROFFICIAL built his bench out of a vacuum of some sort. Maybe he'll chime in and tell us about.
gzig5
Well-Known Member
It's called a manonmeter. One end is open to atmosphere and that high end connects to the vacuum source. The harder the vacuum pulls, the higher the fluid will go in the tube. I have one of these things connected to the radon pump connected to my sump pump system. You can get relative flow data but I don't know how sensitive it can be.Would have been nice to see where the ends of his metering tube were placed
Like the idea of simple percentages as he had an overall 17% increase in flow. Of course we are missing velocities, lift characteristics. But I think for a basic home port this would be useful at least to sync up the ports and give you reference data.
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