I recently tried hooking up two RooR.de bongs together using straight tubing. The result was not only really fun, it was suprisingly smooth. After a little while I noticed a trend in the resin build up which made no logical sense to myself. So, i bring it to TC...heres hoping sm1 can hazard a guess.
The situation. As I mentioned, I have two tubes hooked up, from mouthpiece to downstem. In the first tube (the first point of filtration) the water is clean and has very little residue. On the second tube (second point of filtration) the water is exponentially dirtier and collects large amounts of resin/tar buildup. I have a few photos to try and make this a bit easier to understand. My question is, why would the second chamber be filtering more resin/tar? Both have the same RooR.de diffuser and amount of water. It just got me thinking. I am using a carbon filter and a selection of nice bowls.
The contraption in question:
Pics after 2 and 3 hits, tube on the left is the first point of filtration (has the carbon filter and bowl) on the right is the second.
Another nice big hit:
this is getting really disgusting now...while the other tube remains clear, the second chamber is just and the diffuser is clogged.
Scraped out a bit of the buildup, what is it exactly?