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Originally posted by Jedirick@Feb 13 2006, 10:11 PM
If you are talking about the red pump from harborfreight that you hook up to a compressor I think it pulls between 28 and 29.
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Originally posted by Rylo@Feb 14 2006, 01:25 AM
Doug, didn't you get my Hi-vac?
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Originally posted by blufive+Feb 14 2006, 02:48 PM--><div class='quotetop'>QUOTE(blufive @ Feb 14 2006, 02:48 PM)</div><!--QuoteBegin-Rylo@Feb 14 2006, 01:25 AM
Doug, didn't you get my Hi-vac?
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No baby, that bulge in my pants when I left your house was all me.
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Originally posted by Jimbo890@Feb 14 2006, 02:46 PM
The auto parts store vacuum pump is used to clear brake lines etc. of air. Works great. I have one if anyone wants it, and I have the Red Harbor Freight pump. Both of these I planned to use to test my vacuum forming system, but now don't need them.
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Originally posted by blufive@Feb 24 2006, 07:51 PM
The Harbor Freight pump requires a constant 90 PSI to maintain the 28-ish inches of mercury. The tank holds 155 PSI and is drained rather quickly. I'd say the air supply dips under 90 PSI in 1-2 minutes and then the vacuum isn't as effective.
Should I look at a different vacuum pump? I'm not opposed to the idea but I don't want to have to buy a larger compressor. I've only had this one for 2 weeks.
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Originally posted by blufive@Feb 24 2006, 08:28 PM
I was wondering if closing a valve would hold the vacuum.
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I use the motor from a Fridge. It pulls a high vacuum but takes a while, but then the motor is oil cooled.
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<div class='quotetop'>(terryr @ Feb 25 2006, 07:23 AM) [snapback]1193133[/snapback]
I use the motor from a Fridge. It pulls a high vacuum but takes a while, but then the motor is oil cooled.
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