How to change a flow meter.

[@macmusica]

4:12 is an Auto-Vent which you use after top ups to bleed air but then tighten lightly as another means of stopping leaks in once it fails AND it will fail after 5 years.

[@WundaGroupPlc]

Hi , as AAVs can be susceptible to leaks after a long time in service, we now provide manifolds with manual air vents. A new video is in the pipeline to reflect this. In the meantime if you use our factsheet M07 & M07s found at 'www.wundagroup.com/support/downloads/' for the latest instructions.

[@iGooner1]

How do I change the Flow return valve?