I am confused as to how this would effect efficiency. It is basically a batch sparge with a very short braid. It would get the same efficiencies you would expect from a batch sparge system correct? The main issue I would see with this might be an increased risk of stuck sparges. Please...
I just used some solid copper wire(like a piece of romex) I had lying around. I wrapped it around something that was slightly smaller than the inner diam on the hose and then stretched it out to create the gaps.