It was a rather cheap Chinese piece from AliExpress, I wanted to try it without spending lots. Well the seals in the body of it leak badly so I'll have to take it apart and reseal with ptfe tape, however that didn't really cause a problem. It has two inlets a gas and a beer/wine inlet, it's really designed for beer as the tip of it doesn't quite reach the bottom of a wine bottle.
Lesson one pressurise the bottle by turning the tap to gas before adding the liquid - otherwise all you get is lots of foam - then after it's pressurised switch the tap to liquid.
two... trust the rubber bung and push it in so you can use both hands on the controls, use the lower tap that releases pressure to control the flow of liquid.
three, do this over a tray/bowl - you'll leak lots particularly the first time. After it's filled turn the tap to centre to stop liquid and gas.
And lastly, it does need repeating, don't whatever you do be tempted to release the bung till you've fully released the pressure using the tap. It would have made great comedy if filmed but I wasn't quite seeing the funny side at the time..
At least I'm clean now and out of my jeans into something a bit smarter.. we're having an afternoon tea from Piglets Pantry for Mother's day so I need to look a bit smarter and definitely not smell of wine.
Anna