DeWalt D27905 10-Gallon Vacuum $199 from Tool King via NewEgg (2011 POST!)
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....FWIW, when they say 83" of water lift... here's what it means (visually speaking):
Technically if they put a long tube vertically into say a swimming pool. Then they put the suction of the vac on the open end of the tube, then the suction would be enough to pull the water up into the tube 83 inches above the surface of the pool.....there's a solution to every problem.......you just have to be willing to find it.Comment
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i have one of these attached to a portable shopvac for auto activation:
http://www.sears.com/shc/s/p_10153_1...&blockType=G12
it pulls amps like crazy.Alex VComment
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Originally Posted by LCHIEN
....FWIW, when they say 83" of water lift... here's what it means (visually speaking):
Technically if they put a long tube vertically into say a swimming pool. Then they put the suction of the vac on the open end of the tube, then the suction would be enough to pull the water up into the tube 83 inches above the surface of the pool.....
It has no effect. it's static pressure. The only time it would have an effect is how long it would take to raise the water level... that's proportional to the volume of air above the water in the tube and how many CFMs you can pull to remove the air. Once the air is removed, then the pressure will hold the water level, assuming no leakage of water or air (the static part).Loring in Katy, TX USA
If your only tool is a hammer, you tend to treat all problems as if they were nails.
BT3 FAQ - https://www.sawdustzone.org/forum/di...sked-questionsComment
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From what I understand there are a few ways to get a lift amount. A 1" tube is a common diameter used. Seems that the tube diameter would vary the lift amount.
.Comment
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Loring in Katy, TX USA
If your only tool is a hammer, you tend to treat all problems as if they were nails.
BT3 FAQ - https://www.sawdustzone.org/forum/di...sked-questionsComment
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you're quite wrong, the physics of it is, no matter what the area (tube diameter or square cross section, no difference), the lift height is the same. Look up how a liquid-column manometer works. The height of the liquid is h=P/rho/g where g is the gravity acceleration constant and who the density of the fluid. No where does A (area) or volume of the liquid come into play.Last edited by LCHIEN; 11-25-2012, 07:54 PM.Loring in Katy, TX USA
If your only tool is a hammer, you tend to treat all problems as if they were nails.
BT3 FAQ - https://www.sawdustzone.org/forum/di...sked-questionsComment
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http://www.rockler.com/product.cfm?p...9&site=ROCKLER
their store price was $20 less this past weekend, but i am guessing others saw it as well since it was on their flyer.Comment
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