ok so have a 3 stage 50 dollar amazon special. works fine , but recentley they have come out with a 4 stage thats supposed to be 30%%% faster/more efficent. anyone know if this is correct or have any experience? thx
newbie hand pump question...Vevor 4 stage pump? 30% more effecient????
- Thread starter Joshua777
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I know this is an old post but I just got a Vevor 4-stage pump. When setting up, they have a plug to insert in the fill line so you can test-pump the unit. Can't get past 3000 psi; I think I would have to gain at least another 100 lbs. to have enough weight to push the pump handle further to increase pressure beyond that. Any like experiences??
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@GerryR, Is this your first hand pump - as in do you have experience with others that worked fine?
If it is your first one, you probably just have to work on the technique - even guys under 150 pounds have no issue with a properly functioning 3 stage pump with the right technique, and a four stage shouldn't be any harder (although enjoying doing it is another matter). The best technique is to pull the pump handle up, pause for a second or two, and then start the downstroke and get up over the handle and lock your elbows and sort of fall onto the pump handle in a controlled way letting your momentum carry the handle down as you bend your knees to hold form. It is a bit of an art and you can figure it out with practice.
If you have experience, and feel there is something wrong with the pump, then sorry - I have no experience with that model, or four stage hand pumps in general (mine is a three stage). I hope you get is sorted out.
If it is your first one, you probably just have to work on the technique - even guys under 150 pounds have no issue with a properly functioning 3 stage pump with the right technique, and a four stage shouldn't be any harder (although enjoying doing it is another matter). The best technique is to pull the pump handle up, pause for a second or two, and then start the downstroke and get up over the handle and lock your elbows and sort of fall onto the pump handle in a controlled way letting your momentum carry the handle down as you bend your knees to hold form. It is a bit of an art and you can figure it out with practice.
If you have experience, and feel there is something wrong with the pump, then sorry - I have no experience with that model, or four stage hand pumps in general (mine is a three stage). I hope you get is sorted out.
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Yes, my first hand pump. I do "lock my elbows and fall onto the pump handle," but getting past 3000 psi seem almost impossible. I say "almost" as I'm not ready to throw in the towel yet!
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Is it a 4500 psi pump or a 3000 psi pump? If 4500, I'd be thinking something might be wrong too since it sounds like you are doing it right.
I have not hand pumped in a several years, but I had no issue pumping my 3000 psi rated Hill to even 3250 on occasion, although it took effort - especially timing of dropping my weight with the right momentum (if not the stroke would stall out), and I weighed about 180 pounds then.
How much do you weigh, since it is relevant to the effort. You can keep playing with your technique, but if the pump is s 4500 psi one it should not be that hard to do at 3000 psi (but if a 3000 psi pump it could be difficult to get the timing just right at first).
I have not hand pumped in a several years, but I had no issue pumping my 3000 psi rated Hill to even 3250 on occasion, although it took effort - especially timing of dropping my weight with the right momentum (if not the stroke would stall out), and I weighed about 180 pounds then.
How much do you weigh, since it is relevant to the effort. You can keep playing with your technique, but if the pump is s 4500 psi one it should not be that hard to do at 3000 psi (but if a 3000 psi pump it could be difficult to get the timing just right at first).
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It's supposed to be a 4500 psi pump. Right now I'm waiting for a fill valve to complete a 100cc cylinder. When I get the valve, I'll try to fill that cylinder to 3600 psi. If I can't do that, I'll contact the seller and see what he has to say.
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Gerry, it’s hard, no way around it. I lasted a week maybe before ordering my first Small compressor.
It’s also a tool thats successful usage depends on the pumpers physicality. Young and strong will manage
better than old and weak with every degree of these parameters in between. Bad body parts ? Just add
to the difficulties
It’s also a tool thats successful usage depends on the pumpers physicality. Young and strong will manage
better than old and weak with every degree of these parameters in between. Bad body parts ? Just add
to the difficulties
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I am 76 but in pretty good physical shape. I tried pumping again, this time my feet comong off the ground (I'm 170 lbs) at the last inch of pump stroke. I managed to get to 3500 psi, but can tell you I won't be doing this for very long! Thanks for all the encouragement and inputs!
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