I followed the instructions but my pump didn't 'suck' well. I found an additional valve at the place where the rubber hose attaches to the plunger part. when I took that out it worked well. I also used hot glue to seal a leak around the top plastic part after I re-assembled the pump. The things I do for my kids! (9 yr old girl who want a 'space' birthday party. the vacuum will help demonstrate what happens to a human with a hole in their space suit!)
Chris, no worries. I'm probably spending too much time on the new projects, need to provide better support for the old ones ... Anyway, please send me pictures of the valve from different angles, I'll try to think about possible reason for the problem. Video would work even better. BTW, are you able to move the rod or it is stuck? If you can move it it should be moving air somewhere, it would be great to figure out where it goes. Regards, Andrey
nice video and with your hilarity in it, it makes it easier to understand the steps to make it! if I want to put a gauge to measure how much air was being sucked out, how should I do it?
The vessel in this case the jar, would need need to be fitted with an external one way valve. A simple one way valve could be made by putting a small hole in the lid about the size a #2 pencil lead. put a small smear of oil across the whole and put a piece of electrical tape over the hole.
Chris, What part of the video didn't work for you? Were you able to reverse the valve? If you could take a picture of the valve assembly and send me the link I can try to help with it. Please note that different pumps have different types of valves, this method is only applicable to certain types of pumps (though it seems to be the most popular type among what you grab from a store shelf). Regards, Andrey
i have a question when i pull up the handller it will make vaccum and when i pull down what happen? the vaccum remain or it will pump air? if i want to take the gas out from an barrel did it work this type of vaccum pump? please i wait the answear!!
I reckon to make a vacuum pump from a bike pump to work you need it to suck air out without it replacing so if you put a marble or ball bearings big enough to block the whole the air goes into the chamber infront of the plunger it should work I will have to make one to find out if it works
Great video! Thanks!
I followed the instructions but my pump didn't 'suck' well. I found an additional valve at the place where the rubber hose attaches to the plunger part. when I took that out it worked well. I also used hot glue to seal a leak around the top plastic part after I re-assembled the pump. The things I do for my kids! (9 yr old girl who want a 'space' birthday party. the vacuum will help demonstrate what happens to a human with a hole in their space suit!)
Chris, no worries. I'm probably spending too much time on the new projects, need to provide better support for the old ones ...
Anyway, please send me pictures of the valve from different angles, I'll try to think about possible reason for the problem. Video would work even better.
BTW, are you able to move the rod or it is stuck? If you can move it it should be moving air somewhere, it would be great to figure out where it goes.
Regards,
Andrey
nice video and with your hilarity in it, it makes it easier to understand the steps to make it! if I want to put a gauge to measure how much air was being sucked out, how should I do it?
Wow, congratulations!!
The vessel in this case the jar, would need need to be fitted with an external one way valve. A simple one way valve could be made by putting a small hole in the lid about the size a #2 pencil lead. put a small smear of oil across the whole and put a piece of electrical tape over the hole.
Nice !!!!
Thank you
just curious, what would happen to an ant or a bettle if you stuck it inside of the jar and started pumping it full of air, and releasing it?
All pumps are not created equal and don't have the same parts inside. What is the make of this particular pump?
Chris,
What part of the video didn't work for you? Were you able to reverse the valve? If you could take a picture of the valve assembly and send me the link I can try to help with it.
Please note that different pumps have different types of valves, this method is only applicable to certain types of pumps (though it seems to be the most popular type among what you grab from a store shelf).
Regards,
Andrey
Can you please suggest materials in which we can store the vaccum which was generated
i have a question when i pull up the handller it will make vaccum and when i pull down what happen? the vaccum remain or it will pump air? if i want to take the gas out from an barrel did it work this type of vaccum pump? please i wait the answear!!
I reckon to make a vacuum pump from a bike pump to work you need it to suck air out without it replacing so if you put a marble or ball bearings big enough to block the whole the air goes into the chamber infront of the plunger it should work I will have to make one to find out if it works
unless you do something with the check valve in the bottom of the pump it "WILL NOT" work. Did you address the issue without showing it? regards
So the reversed piston will not blow any air back in the chamber?
haha use it to squash plastic bottles or inflate marshmallows! nice vid
yes, and that's a great idea
How do you make it suck the air out?
can this be used for a vacuum distillation