nah lol
Nvr had my pump leak in the vac oven while the pump was running. It has happened after i turned my pump off and left the valve open
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Somethings fucked there bud.
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That makes more sense. I haven’t really seen exactly when it comes in there, you’re probably right, thank you.
You’re closing your vacuum valve before turning the pump off every time right?
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I was not, not every time. I’m learning everything from this site 
Oh. Man. If the valve isn’t closed, the vacuum from the oven will pull pump oil out of the pump and into the oven. Simple physics.
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I am since the back flow. I cleaned everything. Hoses, oven and changed vac oil
Do u have backflow valve?
Sounds like u need new pump or change oil and conditioner inside bad
So I’m not the only one. 
This happened on my first oven. No longer own that one.
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Dood! Toss the fucking pump in the trash! Chances are you contaminated slabs with the vapor oil if actual oil in the chamber! But that’s just my thought!
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Just clean everything and start closing the valve before you turn the pump off.
No biggy
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Yes I’m using the backflow valve every time I turn the pump off now, no sign of any pump oil in the oven anymore.
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I appreciate the help
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How do you keep slabs from sugaring up? I keep increasing temp 2 degrees farenheit to get the little solvent bubbles out, which still aren’t out after about thirty flips and 50 hours in the oven, but when the temp gets higher than 102F I can notice spots starting to sugar up. How can I get the bubbles out without sugaring up my nice shatter?
Leave it in the oven at mild heat/no vacuum for 30 min -1 hr. Usually works for me.
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Sounds like more people on here need to look into bret maverick
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Right. Unfortunately most of Bret videos have been reported by YouTube. The dude was so ahead of his time.
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I’ve noticed that when certain runs turn out more stable than others, we tend to see more bubbles as opposed to a sappier consistency which typically can be made entirely homogenous following a purge by increasing oven temps without vacuum. As to why the bubbles are present in the first place, I attribute to several factors, including thickness in some spots vs others but more likely an inability to remove the residual solvent when the extract is malleable. Once it solidifies (for lack of a better term) by means of heat and vacuum, the bubbles are far more difficult to remove, something you’re likely noticing.
That said, we’ve resorted to a technique that’s similar to those lied out previously. Basically, once the extract has been refined to a standard that will pass testing, we reduce the vacuum and allow heat to remove any visual imperfections (bubbles) before removing the vacuum altogether, If by the end of this process there is still noticeable bubbles remaining, similar to the picture provided at the beginning of the thread, we lightly gloss over the extract with a heat gun on the lowest setting. We apply gradual heat to both sides of the extract to force remaining residuals toward the surface where they’re expelled. This has helped immensely in providing a more uniform product, especially once we’ve reached the point where the extract is fully stable preventing us from achieving the desired clarity. That said, there’s definitely a right way to do it, you have to be gentle and not allow the heat to degrade the product but it can be done and it will result in a more visually desirable product, one without deformities. Some may claim even the lowest settings on heat guns exceed the desired temps for maintaining the desirable constituents found in cannabis extracts but we’ve done side by side testing in regards to potency and terpene retention and have found zero evidence to suggest the extract is degraded by this process.
Hope that helps and anyone who would like to chime in please do, all beneficial criticism is appreciated!
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sugaring is a strain issue/ strain dependent simple as that; you have certain terpenes/terpenoids that will nucleate even from flipping can cause nucleation points… I remember when people use to swear by 1-2 flips max, then some do as many as possible etc etc obviously various ways “work” without getting sugar points… multiple temperatures work for different people, yet no sugaring, so I getting t the sugaring is a strain issue… miss making shatter haha
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