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This is very much off topic but do you have any idea where food-grade terpene extracts could be sourced? I had the idea that I might be able to replicate strain flavors by copying the terpene profile from lab tests, but this was abandoned after 20 minutes of searching for d-limonene that only...

I've had my homemade vape longer than other model in my sig. Aesthetically, it's not the most pleasing, but functionally, it blows every other vape I owned out of the water. Here's why: Fast warmup ~ 2 minutes Glass bowl is easily emptied, reloaded, and cleaned. The smaller screen (uses an...

Vac purging at 90° is absolutely less destructive than a heat purge at atmospheric pressure. Ethanol will leave the oil naturally but it's going to take a long ass time. The oil also gets more and more viscous as the ethanol evaporates, effectively slowing the rate of evaporation, so it could...

I got an ecig recently and have been wanting some strain flavored ejuice (like durban poison or chemdawg). However everything I've read online regarding cannabis and ecigs is about extracting THC. I on the other hand, want to keep those delicious terpenes. Potency is not a priority; in fact I'd...

@puddleglum were you doing that with trim or flowers? makes sense to run trim, but if the hash is low-quality I'd prob prefer to keep flowers in their raw form.

The oil is isolated from the pump in many designs, but if the seals leak, it can still pull through. I've thad hat happen with my two stage robinair. -29.5" was meant for people close to sea level. At my elevation in Colorado, the lowest relative pressure I've seen on my gauge is -25". Every...

.05-.1g is prob all you need

I don't think I ever saw a "vacuum purging 101" guide online, so here's a quick lesson using DieHards pic: the red box is a temperature probe, you can use other methods, but keep the temp around 110° (+- 5°) check that chamber/concentrates are warmed up before starting the pump make sure...

I remember someone posting in the concentrates thread that they tried blasting into a ptfe dish and their oil just ended up getting stuck to the dish. I think they had to dissolve with ethanol to get it out

damn you're spamming every nail thread i'm subscribed to. Titanowl seems to be no different than the dozens of other discount accessory makers out there.

I don't think noise is a major concern unless you're doing a stealth purge in the middle of the night :D The pump only needs to run until the chamber is down to pressure, and when you're burping the atmosphere. Other than that, the vacuum is turned off for the majority of the purge.

I'd go with whatever is wider. Surface area is hugely important for purging. I'm guessing you won't be using a rack setup in your chamber, so you don't really gain anything with a taller chamber. Although with that pump, the difference in evacuation time between a 1.75 and 3 qt chamber is pretty...

I'd love to hear a solution to this as well. A shop near me sells decent bubble for 16 bucks/g but it's only about 80% dabbable.

Here's a micron conversion chart: http://www.engineeringtoolbox.com/vacuum-converter-d_460.html That pump is more than powerful enough for purging- it can pull greater than a 99.99% vacuum.

Yeah I've seen that list as well and haven't really noticed a difference with brands that are supposedly "cleaner". Distilled butane with a closed loop will be pretty awesome though! I wish I ran enough to justify getting one. Congrats on the watermelon - I bet that tastes delicious :mmmm...

And then load up each chamber with a different strain. I like this idea. There's actually a combustion pipe that uses the same concept:

Looking good! What kind of butane are you using?

Those robinair pumps are super solid. I bought mine off craigslist from someone who used it to service ACs for years. Cleaned it up and changed the oil, and it's as good as new. I have the robinair 15600 (2 stage & 4 cfm) and tbh, you really don't need a pump this powerful for individual use. My...

@FreeSound That setup should work fine. Few things worth pointing out: If you want to blast directly into the chamber, I would get a smaller glass one to make scraping easier (ideal for smaller runs, i.e <3g). Otherwise you'll need to blast on pyrex, and scrape and transfer to...

Should be fine for a torch. Since the butane is enclosed in a can and not exposed to oxygen, there's not a lot that can happen to it.