Dont buy! Listen to your peers.
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Why so fixated on across international unit?
You can get a used Edwards or an Alcatel for 300 on ebay. I’d say it’s more risky buying some crap pump off Alibaba than it is to buy and rebuild an Edward’s pump.
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The across international we have been using has just kept going and going. The only reason for buying a new pump is to buy a better pump. I’m not incredibly knowledgeable when it comes to the pumps yet. I am very open to other opinions and proper guidance.
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These pumps are not suitable for spd, they will for but not very efficient. Ive used them to pull heads and terps and the fraction died, swapped to edwards and pulled a insane amount out after the fraction had ended with the a.i pump
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For my 2L I use a Welch 1400 and it works well. It’s not the fastest, but my potency is ~95%tac, ~90%thc and most time is just set and forget. I picked it up from Avac for $1300ish. It was a rebuilt pump but comes with a year warranty.
How slow is slow?
I heard those pumps run forever, which would be nice.
100 to 150 ml/hr which is adequate for a 2L imo. Idk what the rates people are getting now, but seeing some people like summit claim several liters per hour make me think it’s slow. I like it, it’s a solid build and I’ll likely have it forever as it will run forever. Only issue I have with it is sometimes it needs a little force on the drive wheel to get it going. I’m not sure if it’s because 120v isn’t as powerful, but sometimes it can’t get past that first revolution on its own. It doesn’t always need help. But once it gets going, it stays going.
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I agree i buy almost all my pumps of ebay then have them rebuilt, saves some money and if your pump guy is good then your set.
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There only .9 cfm so depending on size of system, nothing bigger tban a 2l at most and its still bery slow and has a very small oil reservoir so a roughing pump and constant oil changes are a must
Continuing the discussion from Across international clone. Anyone tried?:
So what would be your choice between an Edwards or a Welch?
Just scored myself a nice D30 for 100 bucks. shes a big ol 200lb girl with 2hp, kf40 flanges and single phase power! Now i need to get my custom 250ML 45/50 big bore setup completed with 45/50 to KF40 PTFE flange adapter lol.
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Gosh, it says “reliable” right on the label. What more could you want?
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LMAO! Thats the part that concerns me the most!
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LOL. I’m too scared to buy something that is cheap. With my luck, it will fail me like every damn shortcut I try and take
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I’m buying a rebuild kit just in case lol
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with pumps like these can they just keep getting rebuilt over and over again?? I have an edwards sitting in my shed that runs great but doesnt pull to good of vacuum. I almost thru it in the garbage because at the time I didnt know dick about shit, but know i’m wondering if it can just be rebuilt. Is there ever a time when its no turning back?
No unless tou tried to run it with sand and grabel inside. And depending on what your willing to spend. Theres not to many things rhat are in there and not that many that can break. Change your oil very often and use a roughing pump and they will perform great for a long time
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Rebuild it man the kits are typically 15l for minor and 300 for major kits
cool. thx