- High pump RPMs
- Low CO2 density
- Low pump pressure
- SFE Bio-Botanical Extraction System
Blockage in the system upstream of the pump.
FIX or WORKAROUND
- Clean the filter.
- Find the blockage by breaking fittings.
- Flush with ethanol or replace, as appropriate.
- Increasing the system chiller temperature might help soften material in blockage, if it is in the chiller.
Performing the cleaning as per Bio-Botanical Extraction Systems Guide (715004757) will flush out the lines prior to the CO2 pump. Chapter 9.7 shows the details of a system using an automated recycler. Chapter 9.8 shows the procedure with a manual recycler.