Comes as two parts.
This item comes as two separate parts. They are shown already joined in the picture. I assume that I connect both parts together in all instances but just wondered if there was ever a time that the bottom section is missed off otherwise there would seem to be no reason to make it separately. The only thing I can figure is the base part can be fitted first then the pipework filled, the base part seems to form a water seal until the bottle is screwed on and then the bottle becomes "live" ...........Have I figured it out myself or does anyone have any more experience ?
Flixton guessed it himself - it's a 'check valve' so the main body can be removed without having to depressurise the system.
Servicing the vents is necessary to prevent/fix leaks as they can become jammed with PTFE tape, grit, etc.
Date published: 2016-12-04