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Jorge,
amd maybe other people, here in Greece I have found that the plastic of the connecting ring deteriorates in the sun, and then the bottle falls out and you can lose some catch, also it is tricky to make a new one, although I have done it. What is better is to wrap a few cycles of electric tape around the connector, this helps protect it from the sun and prolongs its life. The sun is a powerful force here in the south.

Gordon