On this forum, I doubt it'd last a week at that price, as long as it looked awesome. But I never suggested you make one, just wondered if it would work, since I've never seen staged disc percs ever actually done.
Well, that depends on how much restriction each perc provides, from an airy waffle to a dense frit, etc. I think honeycombs with fewer, larger holes would probably be the easiest option, then tune the percentage of hole to glass in each disk until you get the right flow behaviour from the piece as a whole. I'd probably work up some sort of tuning rig outta clear plastic and metal that'd let me try different numbers of perks, spacings, different restrictions in each stages, etc, get all the final settings and measurements, then try it in glass having a good idea how the end result will behave.
I'd play with venturis or flow-powered gears, or something else before that, though. Or an induction-venturi-powered recirculator. Or whatever the green elves whisper to me about on any given day.
Again, you could totally mitigate this by design. Splashguard, or mouthpiece shape, or have the top of the ladder unload into whirlpool chamber and make it recycle, then put the mouthpiece in the dead spot. Or it could go over a waterfall into the reservoir instead of a vortex, or something. Still looks cool, and prevents the water all collecting in the top stages on long draws. Probably better to tune the discs to reach equilibrium with similar fluid volumes in each stage, though, so that recyling offers no advantage.
I don't recall asserting that I did. I asked a question about the practicalities of stacked discs, but that's not quite the same.
I did suggest a bunch of other ideas, and even got a couple likes, so I'm not sure why you're devoting so much time to the one single post that got no likes, and was a question, rather than an example of an idea.
There's so many variables though. Perc diameter, can volume, restrictions and flow-rate caps, etc. How big was the honeycomb? How many holes? How big were the holes? How tight was the restriction under the whirlpool chamber? By messing with those you could get the stacking to a level where it didn't foam up the whirlpool chamber, and formed a clean vortex. Chamber shape, injection port height, angle, restriction (speeds injection flow) and plenty of other boring shit are all important to a neat, sustained vortex.
Even a 3/4" three-hole disc is technically a honeycomb, for example.
I can't even buy glass without having to do it sight-unseen over the Internet and pay massive freight. No boro suppliers to browse around here, lucky yanks don't know how good they have it, mutter mutter <trails off>.
Where was I? Oh right. Reselling my free upgrades to worked heady pieces on the forums to finance buying clear stuff from ALT/Kulture, etc. Sucks I can't get custom stuff made for myself anymore, but at least I can buy lots of brand name shit cheap now.
Hrm. Fuck but I rant a bit when medicated. :/