Welcome to The Little Guy!
The main reason this seal fails is that it gets dry and sticks, then when the cap is tightened the twisting action tears the seal.
To avoid this make sure you always tighten the filler cap by hand (you will still need to use the group cup to take it off).
If it is too tight to do, then rub some cooking oil into the seal to spins more easily.
the little guy is owned and operated by the Kaffeina Group.
3 Dairy Drive, Coburg North, VIC 3058. AUSTRALIA
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