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We are consistently having problems with collecting our product during and after our CO2 extraction process (using Hi Flo 5L 2K).
We do two "pulls" (open Separator collection vessel bottom valve) while extraction is going on (1 pull 2 hours into process & another at hour 3) and then a final pull at the end of extraction (after 4 hours). Inevitably after a few grams (5 to 10) of product oozes out through the collection vessel valve, we get CO2 vapour or gas leaking through and have to shut the valve off.
We then depressurize the Separators and remove the collection vessel. There is usually 30 to 40grams of extract remaining in the vessel.
Often the extraction product is contaminated (frozen with CO2) and also has lost that beautiful orange, yellow colour it has during our pulls. The collection vessel is extremely hot and a lot of our product colour is going dark brown to black.
My question is why does the CO2 vapour leak through the valve when there is still so much product in the vessel still there. A lot of videos I see out there shows huge amounts of product coming out of the collection vessel valve and I never see CO2 leaking out in the process.
Extractor Pressure 1800psi, Extractor Boiler 51 degrees Celsius, Separator Boiler 57 degrees Celsius, Pumping @ 30psi
Many thanks in advance