If capped with stoppers, can I use this to simulate a partial vacuum or will it collapse easily?
866039
As long as you can seal the ends, you can evacuate it and it will not collapse at all. I bought this to replace the glass tube that I used for a physics demo where a penny and feather fall through the evacuated space. I've gotten it down to about 1kPa and had no trouble.
1422845
Yes. it will take a minute or two to pump up from minimum pressure, but it should be no problem.
1734976
I had the can from a pal with approx 25% Left in the can and as the can had no top I had to find a top that worked. I have no idea if the original top has a fine tube for confined areas. Sorry!
1742812
You will have to twist the stopper. This will release/extend the stopper. Then cover bottle and pump until tight,.
1978508
Removing the stopper will keep it from sealing completely, so be careful that it is in a place that it will not tilt or be knocked over.
954215
Take top off of snap capp then squeeze can and top will pop off. Make sure can is empty
888618
This machine is a suction-type vac sealer so requires a bag / roll with a pattern (like VacMaster) or embossment (like Foodsaver). Smooth bags will collapse not letting the air to be sucked out. Altho some ppl will tell you to put a wrinkle or a banding strip down the middle, I find this not worth the time. Stick with the suction bags / rolls and all will be good! (speaking of experience)
812128
Well, being that it's a smaller compact shape, when you fill it up, there is going to be a rounded bulge. I would recommend filling it only 3/4 full, and making sure any excess air is out before putting the cap on. Although I bought it for myself, sometimes my cat leans up against it. Not sure how well laying directly on it would work. Maybe this would work? K&H Manufacturing Self-Warming Crate Pad Mocha 14-Inch by 22-Inch
1871884
I would say no, that's not normal. I just really take my time when capping, making sure I am keeping the cap level and pressjng down a bit. I haven't experienced any shortage of pressure when opening.
1961498
That is the best way I know. Trying to pinch off the tube, or pulling out and raising the other end could result in some spilled gas -- danger! But this hasn't been an issue for me. This product works well as long as you are careful pulling out the correct end of the tube when you have enough fuel. It just takes a little thought the first time.
386688
I usually make 6 or 7 pumps and stop when I hear a quiet "click". When I remove the stopper the next time, the vacuum seal pops.My pump is new and I do not have any knowledge of how long it works well.
1263802
Yes! but make sure you close the bottom fully. I'm not sure if it's because I have a high power setting or not, but sometimes it pops open in the middle if I let too much pressure build and don't shut it as hard as I can.
1036817
This is the batch one so I have to put the stopper in place. It is a safety mechanism. You can get one that uses a switch too if you prefer.
1253966
Hard to say, sorry for that unclear answer. I wouldn't be surprised if it did, it depends on what other entryways it has. It's all based on pressure. If you cap it off, you're putting a cap on the 2liter soda bottle. If the bottle doesn't have another hold in it, or in the case of your basement, cracks in the foundation floor, where the floor meets the walls, etc, then yes, you should see a drop. The only real way to be sure of a drop is to exhaust the radon, a project you'd clearly like to avoid. This is a 5 star cover, but understand to do it right, you'll need to drill some holes in your floor around the sump opening and then caul/seal the bottom.
1575662
Yes....but a second b4 you shut down the vacuum.make sure you turm the ball valve to the off position, immediately after that shut the machine....and yes monitor the gauge to make sure vacuum chamber seals properly. But remember that the higher you are ABOVE sea level you are the LESS vacuum you can achieve. ..but if you are below 1500FT no worries ....anything higher than that you will begin to lose vacuum...
1352548
Not as well, the diameter of the cap on the 'blow" end is more like 3/8" so you would loose a lot of thrust.
651891
Hi, I had the same problem for a few days.....finally I thought and thought and realized that the process works on vacuum seal. I majorly tightened the lid and the thing stopped overflowing! They should tell us that. Hope yours works well.