Annoying plastic water bottles .

[muddy]

According to EU regulations . they all have tethered caps .
Blooming annoying .

[GrannyMac]

They are a pain. If you don't hold the cap when you pour liquid goes everywhere. 

[Mups]

According to EU regulations . they all have tethered caps .
Blooming annoying .

Pardon my ignorance Muddy,  but what does 'tethered'  mean in relation to a bottle top please?

[Cassandra]

Pardon my ignorance Muddy,  but what does 'tethered'  mean in relation to a bottle top please?

Linked to the bottle: