
As mally noticed, your BIAB bag is definitely too coarse. You are in Ozland as am I so maybe shoot me a PM and I'll send you a sample of the material size you should be using.
Next thing is the ID of your hose is 12mm which is pretty much 1/2 inch so that is too big. You really want to go 3/8" (9.5mm) which involves basically using a bit of 1/2" and then shoving the 3/8" hose up that.
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When you do have the right porosity BIAB bag, you can use that as a hop sock. Basically, after you pull the bag and while the sweet liquor is heating to boiling point, you empty your BIAB bag, run it under the tap to get it clean (it doesn't need to be sterile) and then you use the bag a hop sock by hanging it in the boil.
I'll try and post some pics tomoz to explain more for anyone else reading this, but, and I don't think I've offered this before, I'd be happy to have a chat with you on the phone as well as I think we could get a few things clearer much faster on the phone and I'd like to see your next run go smoothly. So, shoot me a PM.
Rest of the set-up looks great

PP