Im open to it, what do you have in mind?
Happy B-day Groovy!
2 Likes
Well if I did the math right it means it would take 267.84901374911839866ml of ever clear to get to 3kw. Going off of 285kcal/44.3603ml = 0.331233KwH
Wishing u at least 5000 calories for your bday 
1 Like
Send me a dm. I can go over your machine with you and help you get there. Pretty much any machine should be able to hit lb/min. With the right tech, 1.5-2 is pretty achievable most of the time without spending a dime
3 Likes
Thanks, I appreciate the generous offer! I know I have a lot of obvious inefficiencies with my previous system design and sops.
I run seasonally and last season I fucked up and dented my collection pots, so I have to start from scratch on my boil/collection side of my setup.
So no machine to optimize until I get new steel.
I mainly have been lurking here versus participating for the past year or two for a few reasons, but one is the decline and lack of open source concepts, design, sharing and an increase in āpopcorn dramaā
Ive been looping coming up on a decade and almost two making bho, so can easily handle this solo, but I get excited in the autumn when I start to get back into the processing mind set, getting high af and start to dig into the forums and latest innovations and designs.
I see threads like this one about open source ff design, and how it petered out after a good start, same with the boomtown cross flow condense tek, or illuminatedās pressurized craziness and secret chilling method. I see those teks being utilized by the big commercial companies with big ass ticket prices, and am motivated to learn, copy, share, improve upon, without green taxes and ideally with the same sort of atmosphere that was abundant 5 to 10 years ago.
Anyways, like mentioned Im looking for new steel for my collection/boil/high side.
Priorities are; Low cost, no 12 or 10 inch ports, ASME u stamp, ssh clamps, 1 to 2 pounds per minute speeds, no nitrogen, hybrid passive/active, 70:30āish solvent mix, make size scaling easier, no or minimized thread connections.
Thoughts;
I can get asme u stamped 350psi, 4 6 and 8 inch jacketed tubes china direct for half the price of standard glacier j/ spools.
If I can replace my previous 12" collection spools with a single or few 6 or 8 inch diameter tubes, that sounds like a big win in every aspect, even if I gotta spray the sidewalls.
With that chemtek spray cap unit linked before, designed to do just that, I was hoping someone would chime in with some experience or thoughts on spraying sidewalls.
Could opt to flood a 8" tube and boil the pool like normal too.
Nice thing is, its pretty easy to try out both!
3 Likes
This is what I was thinkingā¦.
I got one of the chemtek spray caps, but is on a 12ā collection, as thatās all I had at the moment!
Seems like it doesnāt quite give enough spray at 1l per minute, which is about what I throttle to with the crc,
but I havenāt had the chance to use it on a 6ā and totally dial it in
1 Like
Thatās the catch with a spray nozzle. Velocity matters. @Waxplug1 would probably be the best to chime in on the method, but from my experience running one of his 6" collections the flow rate we got, not even with a strong pump probably like 400gph or something on only 2.8kw of heating power with zero calculations on recovery side but dry ice on 100lb vessel with what I believe was a 50ā half inch coil also in dry ice we were seeing recovery speeds of about a lb/min but that was also with nitrogen holding up the recovery process by reducing the overall pressure differential.
The other issue for tall skinny collections ended up being that the collection needed to be emptied of finished solution after about 2-3lbs would build up or bumping became an issue, this couldāve been related to the heating not being sufficient though. I seem to recall that franken-rig system needed some optimization that I never had the opportunity to complete.
As was mentioned before in relation to the bffe though, a good bffe that isnāt going to foul with continued use needs to be dialed in pretty well or it might as well just be used as a preheater/first-stage evaporator. You could always run lines somewhat inefficiently and use the same heating to power the ffe first then travel back down to the collection to heat it with the remaining power.
Anyone else that is on vapor push alone with filtration notice your flow rate into and out of the collection seem to achieve an equalibrium unless you stop providing heat to the collection or cut the recovery path? Like a type of vapor lock or something maybe.
2 Likes
I have questions if you are willing to answer them! I have a recently fresh drive to build myself a similar system. Reading this thread is incredibly motivational!
Can the trs21 pump liquid butane without modification? Do you think the pressure in the system (acting on the liquid at the bottom of the condenser) could push the tane with pressure differential, if I were to keep the solvent tank chilled and thus low pressure/vacuum? Id be chilling it for the next run anyway.
Did you ever post pictures of the back side of the machine? I will look at your CAD drawing.
Did you ever reconfigure to pull from the top?
I was thinking about using the same evaporator as you. I already preheat so that should be plenty of evaporating capacity. My heater is 22000 watts. I was think about getting a distributor plate but I donāt need the extra expense right now, and the sprayer method seems to worj incredibly well. I am sure I can upgrade that pretty easily at a later date.
I also plan on utilizing water ice to prechill in another tube and shell, but now I am thinking about ways around height constraints. I donāt need a 13ft tall system lmao.
Any help is appreciated 
I was wondering why you dont want to use nitrogen?
Also, whats the deal wuth a hybrid recovery? Can you give a little more detail
Thank you
Id love to see any progress you made with this system, even if only in designā¦
Thank you!
The trs is not designed to pump liquid. Very bad idea
Pumps liquid just fineā¦
1 Like
Using an hvac recovery pump to pump liquid is the most future 4200 thing Iāve heard lmao
yup, just a silly redneck
From the manual, instructions on recovering fluid with said pump. 
This has been discussed at length a few times here.
3 Likes
Oh well Iām sure if cps says itās cool, even though the thing struggles to pump vapor without leaks, itās probably fine.
Thereās definitely safer ways to move liquid that involve changing pressures, even with a recovery pump, that donāt require you to pump very cold liquid through an unreliable pump
Oh I tend to agree with you there.
Mainly because I think its redundant and a nuisance if I can use the same processing gas to do the same work. Though Ive yet to properly assess and compare. Fully admit its also to do with just never having used nitrogen in a cls as well, so I use and do what I know.
The hybrid is because having a pump comes in handy in certain situations such as clearing material tubes and building pressure for pushing, reducing head pressures when cold isnt enough or available etc.
Had a thought the other day about a water slide style falling film, with the idea being perhaps āmore gentleā than the common tube and shell with spraying and such. Gentle for āterp retentionā Inject at xLpm and recover to (1/5)xLpm before hitting your collection.
something like this:
Why wouldnt this be a good idea compared to tube and shell style?
Is my gentle terp retention thinking not sound?
1 Like
I think youāre amazing for trying something new and risking yourself against the haters of the universe but from what I see and the couple years with terps in my experience. Iād really like to know the other connections you anticipated for both sides of your model.
To better visualize the experience goals.
The gravitational drip tech with your piping is awesome but do you have any ways of showing your reasoning in experience?
Also: long time. All respect seeing. Have a good one.
Would this increase residence time and therefore expose the terpenes to more heat for a longer period of time?
@moveweight
Pretty standard as far as the other sides. Large solvent storage and collection just because prices are cheaper than ever so might as well over size volumes for future expansion and larger surface areaās to utilize, exact sizes still are up in the air, waiting on few things like auctions to come n go and china direct costs to compare. Material rack also fairly standard, versatility is my goal, 4 and 6 inch options, always wanted to have the rack mounts also be the jacket circ ports with triclover clamps, so hopefully can get that happening(re enforced like NB but with a through port).
Cant afford the off the shelf mfg systems, but can put one together from their suppliers for a fraction eh!
@irondogallen
Would this increase residence time and therefore expose the terpenes to more heat for a longer period of time?
If sized and heated properly I think maybe not, but this is why I ask!
I think the one could argue the surface area and temp could be equaled when comparing both but the expense in the water slide might be more needing multiple full tube vs the single tube and shell.
My theory relies largely on the spraying exposure to fill a tube and shell being too āterp liable/violentā.
Also perhaps the turbulence of the boiling gasses rising in the tubes being a factor of āexcessivenessā???
I imagine a lower temp type slide especially when getting to the lower stages, room temp for sure, so maybe more control over stages of evap vs a single tubenshell.
1 Like