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Pumpshaft9
Joined: 04 Jul 2007
Posts: 10
Location: SW Houston
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 Posted: Tue Aug 26, 2008 2:02 am Post subject: Vacuum Pumps at Harbor Freight |
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Has anyone tried the refrigerant vacuum pumps now being offered by Harbor Freight? They all pull to full vacuum so they would have to be regulated, hardware for that is pretty straightforward. I'm including the link to the least expensive one. If anyone has any input I'd appreciate it.
Pumpshaft
http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=92475
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| Starting to fill up my 2.25 with an Auto Zone hand vacuum pump |
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DickBulger
Joined: 05 Mar 2008
Posts: 372
Location: SF Bay Area
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| Posted: Tue Aug 26, 2008 5:36 am Post subject: |
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This is a "Venturi-type" vacuum regulator which means its needs an "air" supply in order for it operate (a compressor for example). They do offer a manual vacuum pump though: http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=92474. It is proly lowest price you're going to fine for this type of pump. They do occasionally sell it for as low as 15.99 if your not in any hurry.
-D-
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jerbear62
Joined: 21 Aug 2006
Posts: 676
Location: central, IL
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| Posted: Tue Aug 26, 2008 4:48 pm Post subject: |
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| I have the brake bleeder kit from the second reply, I've had it over a year now and it works fantastic. I caught it on sale for 17.00 should have bought 2...well not in any hurry I will keep an eye out and let you know if it comes up on sale. Jer
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sparc
Joined: 02 Oct 2006
Posts: 9
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| Posted: Sat Aug 30, 2008 5:05 am Post subject: |
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| I have a venturi type vacuum pump. You just need an air compressor to run it. It works great but takes a lot of air so your compressor will run a lot. I use a jar with an aquarium air line and once I get a good vacuum, i pull out the line and turn off the compressor until its time for a refresher vacuum.
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DickBulger
Joined: 05 Mar 2008
Posts: 372
Location: SF Bay Area
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| Posted: Sat Aug 30, 2008 6:12 am Post subject: |
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Yes, as I mentioned above, some kind of device is required to move air through a "Venturi-type" vacuum regulator. When you consider the added expense of an air compressor (unless your fortunate to already have one) the cost can become prohibitive. This little device found at Bed Bath & Beyond is a very attractive alternative. I was lucky enough to have a coupon lowering the price price to 9.99.
http://www.bedbathandbeyond.com/product.asp?order_num=-1&SKU=14749659
I have two and hardly ever use any of my manual pumps any more. It can pull a 20 - 22 inHg and is very easy to adapt by adding a hose with suitable fitting. tho it's not necessary, I added an inline gauge and one-way valve for my convenience.
-D-
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Sweeternuts
Joined: 14 Apr 2008
Posts: 31
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| Posted: Sun Aug 31, 2008 3:35 am Post subject: Awesome |
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| Are they loud and where did you source the gauge from
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DickBulger
Joined: 05 Mar 2008
Posts: 372
Location: SF Bay Area
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| Posted: Sun Aug 31, 2008 4:02 am Post subject: Re: Awesome |
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| Sweeternuts wrote: | | Are they loud and where did you source the gauge from |
That's one of the many pluses on this gadget, it's very quite. You can even tone it down more by muffling the vents which are only on the side shown. The gauge is from a broken POS Mityvac (The Mityvac really is crap for what you have to pay for em. The Actron from Harbor is far superior). If you're in search of a gauge though, they can be found at McMater-Carr; http://www.mcmaster.com/ search for "vacuum gauge".
Hope this helps -D-
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Sweeternuts
Joined: 14 Apr 2008
Posts: 31
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| Posted: Sun Aug 31, 2008 4:15 am Post subject: |
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| Are they quieter than a tetra aquarium pump set ta suck
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DickBulger
Joined: 05 Mar 2008
Posts: 372
Location: SF Bay Area
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| Posted: Sun Aug 31, 2008 4:54 am Post subject: |
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| Sweeternuts wrote: | | Are they quieter than a tetra aquarium pump set ta suck |
That I can't say, I do not have a Tetra pump to compare it with. I can say that if you were to "muffle" it as I described, a person on the other end of a telephone conversation would be hard pressed to hear it. Of course you only need to trigger it as often as required to maintain a vacuum.
-D-
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gearedrock
Joined: 20 Dec 2004
Posts: 12
Location: Arlington, MA
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| Posted: Sun Aug 31, 2008 10:43 pm Post subject: |
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I have a tetra, they're not exactly quiet, and I can only get mine to pull about 5 Hg. The way you describe it this sounds quieter. Have a bed bath and beyond near here, have to check it out.
How long do the batteries last?
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DickBulger
Joined: 05 Mar 2008
Posts: 372
Location: SF Bay Area
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| Posted: Mon Sep 01, 2008 12:29 am Post subject: |
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| gearedrock wrote: | | How long do the batteries last? |
It takes 6 AA size batteries and are very easy to replace (as apposed to the Reynolds model that requires removing a screw). The first set didn't seem to last too long and I thought it was going to be battery hog. But the second set has lasted nearly double the first (I use it a lot) so I'd say that it actually gets pretty good millage.
-D-
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Sweeternuts
Joined: 14 Apr 2008
Posts: 31
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| Posted: Mon Sep 01, 2008 4:56 am Post subject: |
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| I went and bought one so noisy compared to a tetra ... however if u have a 3 way fitting in line like i do i have replaced the ball valve i used as a regulator and the noisy piece of fuc is good ta pulse higher vac levels but why u would ever pull lower
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Sweeternuts
Joined: 14 Apr 2008
Posts: 31
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| Posted: Mon Sep 01, 2008 5:01 am Post subject: |
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| Pull ta lower than 5 in hg continuously ... i've done it and bad idea but if ya do theres always viagra for uR golden years
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Pumpshaft9
Joined: 04 Jul 2007
Posts: 10
Location: SW Houston
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| Posted: Thu Sep 11, 2008 1:18 pm Post subject: Ike |
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Thanks for all the replies and advice. I do have the compressor but the power demand to performance would be to low. I have a neighborhood Harbor Freight opening tomorrow so I can go and browse the bits and pieces in person. Sorry for the tardiness but my DSL to home port line failed and it took ATT a week to replace and 10 days to to reconnect the modem.
At any rate it looks line the eyewall of Ike will pass 40 miles away and I'll be on the dirty side. So Thursday afternoon I'll be packing the computer up in big ziplock bags and I've a lot of windows to board up. I'll be back when calm prevails, Thanks
Pumpshaft9
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TesticuLarry
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