Progress
'Socratic Existentialist, MD'
Dome vs. Mushroom: Yes, there is a difference (the spelling JK ). Seriously, terminology varies everywhere (maybe a mushroom perc should be shaped more like the roof of a smurf house --unless it is the rarest of all mushroom percs, the cubensis ).SM (from VHW thread) - Progress - was hoping you could answer my question about the different percs and the benefits/drawbacks of each...Also, I edited my message above but the mushroom and dome perc look really similar. Can you see any difference?
As far as the 'different benefits and drawbacks of different percs', that is VERY complicated. Basically, (IMO) what it comes down to is personal preferences for drag/flow/action/filtration/cooling/water-contact/concentration/dilution/etc. which is attached to their draw-speed/size-preference/temp-preference/heat-tolerance/herb-selection/etc.
I therefore extend this question to all who read this:
WHAT ARE YOUR FAVORITE 'FANCY WATER FILTERS FOR VAPOR' ? ? ? ? ? ? ? ? ?
(why? what do you like about them? what do you use them with?...)
edit: I wanted to add some recent comments from the VHW thread because they directly answer some of the questions I posed above.
I couldn't tell from the pic (http://www.fuckcombustion.com/viewtopic.php?pid=16870#p16870) but that would indeed be a difference from typical domesSA - My guess is the mushroom perc is pretty much the same design, but instead of walling/connecting the bottom of the 'dome', it's wide open. Usually dome percs have slits near the base, these 'slice' or split the smoke into smaller bubbles (resulting in more surface area). If you have any experience with mushrooms, the ones in the forest silly tongue, you'll recognize the similarity in the 'gills' this thing seems to have. It really does look like a mushroom.
They can be tough to clean (as well as inlines, etc), but I find that filling them completely with salt (fine grain if necessary) and then adding the iso (blow salt solution up into hard to fill percs by blowing into the female)SA - As far as the pros/cons on individual styles, I only have experience with tree and dome percs. When I smoked, they were a bitch to keep extremely clean. I've only tried them in conjunction (bong had 2 tree/2 dome) but the dome percs certainly cleaned a lot easier.
It is definitely difficult to isolate the performance of a perc when it is attached to another (the other night I used one that had melted strands of glass (which were wrapped, in coils around a small graphite dowel while being made--which was removed before cooling completely--to form a mesh of glass which was placed inside of the inline instead of the part that usually has slits or holes). It worked GREAT, but also had a Redwood Tree Perc--can't really determine how much each helped.SA - Can't comment on their individual drag and airflow
Everyone has different preferences. Mine is for a lot of manual cooling through the action (collisions/splitting of the bubbles) in a short time. If you picture a 3 mile bubble traveling up through the ocean (exaggerated analogy of course), the inside gasses will never touch the water and will retain a higher temperature than the outer shell of the bubble and not benefit from any particle filtration. Therefore, I feel it is necessary to break up bubbles repeatedly to have the most effective/even/thorough particle filtration/cooling. I am certain that a small degree of the vaporized material is lost in the water, so how far one wishes to take this is a personal matter (heat/ particle inhalation tolerance, etc. are factors in this decision as well). I feel that losses due to time/distance traveling through a device remove more of the vaporized material AND do not have the same benefits (even cooling/particle filtration) as the increased action does.SA - I do think the wide open 'mushroom' style is the way to go if people are wanting percs for vaping. Too much diffusion could be a bad thing.
I agree that domes can be fairly 'draggy'. The reverberations of a large bubble escaping (like the down-stem of the de-verdamper, an old-skool JB piece and that giant vaporizer thing http://www.fuckcombustion.com/viewtopic.php?id=202 ) definitely contributes to drag (as well as dilution if the force carries over into a chamber that contains air and contributes to mixing). However, many dome percs are placed somewhere that the reverberation collides with some type of ceiling which absorbs the reverberation of the large bubble and contributes to the creation of many smaller ones (IMO. LUX, MediCali, PUR, etc. usually keep this in mind in their designs)KC - honestly, dome percs are pretty draggy.
Again, all of these decisions (afaik) are based on personal preferences (some of which are listed in the pre-edit portion of this post--i.e. concentration/dilution, etc.). However, as may be apparent through the tip of this iceberg above (the range of available glassware being the iceberg itself), artists/engineers are working very hard to create a variety of pieces with constantly evolving technology to cater to the wide (and also evolving) range of vaporization/vaporizer-accessory preferences.
As you can see, this may be a topic with many conflicting opinions and perspectives. I look foreword to hearing them all (WHAT ARE YOUR FAVORITE 'FANCY WATER FILTERS FOR VAPOR' ? ? ? ? ? ? ? ? ?--why?...what do you like about them?...what do you use them with?...). IMO, intrigue and innovation precipitate creation and evolution.
As always, toke it easy (with any fancy water filter you chose--or even none at all )