Hello Hoppy,
If you just want to use this for line cleaning you don't need the post. The actual stiff grey plastic tube that goes between the nozzle and the handle that has the trigger on it is 8mm OD. So if you take that off you can attach standard 8mm beer line directly to the pressure sprayer.
With that in mind, it's better to get a john guest adapter that allows you to easily connect 8mm line to 8mm line. Then you can use the pressure sprayer itself to push the cleaning solution through the lines. No need to waste co2.
Hi M^B,
What I was hoping for was to be able to just plug in the ball lock connection from the taps (that normally click onto the beer out post on the keg) onto the pressure sprayer and run through the taps that way. But I'll take the laptop out to the beer fridge and re-read your post to see if I can figure it out.
Thanks for the prompt reply.