Will this vacuum pump be suitable?

[Revv23]

Not really sure what to look for, and i cant afford a nice vacuum pump, but this looks like it may work, just connect it to an air compressor and your set as far as i can see... not sure what the mercury level is, though im assuming more is better, what do you guys think?

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=66999&item=7518278223&rd=1

[Sneil]

think you need an air compressor for that

[Russell_hq]

I think 28.3" vacuum is a bit too weak and won't remove any moisture

[Aviator747]

Ya, you need a air compressor to run that. It takes 75 psi to make it work.

I just nabbed this (http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=7973974184&ssPageName=ADME:B:EOAB:CA:6) off of Ebay.

This guy had 5 or so of these the other day. I would keep an eye on him for more. :)

[wdrzal]

those(air powered) will not dehydrate the system, they only remove some of the air,don't waste your money on them.

[Revv23]

ok thanks, if 28.3 is no good, then what is?

[Aviator747]

I assume anything over 29" Such as the link I posted above. It does 29.5"

[wdrzal]

pressures above 29.2hg and water simply won't boil at ambiant temperature,but from a practical standpoint much lower pressures are needed to create sufficant temperature differance so heat transfer can take place and also offset pressure drop in the lines which is critical at very low pressures. pressures from 1500 to 2000 (29.86 to 29.84) microns are required for effective dehydration.reaching pressures below 500 microns(29.90) is preferable.