Originally Posted by
Jerrys88
I'm surprised to read this (that it will not seal well with a non-threaded cartridge). My recollection is that the Ultraflate was designed to use both threaded and non-threaded cartridges (hence the threaded sleeve), and it may have even come with a non-threaded one. Is this from experience, Marcus?
Photo for anyone not familiar with this model:
I've done it 20 times by now. It seals fine,when you feel the puncture tip just touching the needle, get a good grip on the cage and spin it fast to get it to the seal.