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Well, since you think this is BS-the answer is based on the Bernoulli Effect, and has been used by fire departments for many years.
Fimble takes his high volume 1" pump, and draws from a bathtub full of clean water, thereby negating the need to clean the intake filter. The discharge of this pump is placed an inch or so inside the 2" unused pipe from the other pump which couldn't do the job.
Fluids in motion have a lower pressure than static fluids and as such will draw adjacent fluids into the lower pressure area created by concentric orifices. When the draw level approaches floor level, a wet towel placed across the assembly will allow draw to within an inch of floor level, within the parameters described.
I didn't think people would become cranky simply because they couldn't figure it out.
No bunny awarded.
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There ain't nothin' more powerful than the odor of mendacity -Big Daddy
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