just wondering, is it common for the o-rings to get worn out so quickly? I have mine for about 2mths now and still no issues with the vacuum, although the tank did leak via the side vent on a few occasions due to other factors
Again, I have no experience with O-rings on vaping equip. but have plenty of experience with O-ring general use.
They do wear out due to friction & exposure to contaminants especially if the rings have to slip through any threading's.
With time all rings will wear out or degrade. Keeping an eye on the rings to watch for any wear, cracks, etc. would be a good idea.
They also stretch over time & even though they may appear to be OK they might start to get pinched & or not make a solid seal.
I would think having spare O-rings would be a good idea cause you'll never know it's bad til' you get a leak. Keeping them lubed will extend their life.
How often do folks have to mess with O-rings? Is it every time you clean?
Hope that helps.
JC