About 6 months ago, we purchased a ca.1964 Westfalia separator. Everything is manual. Everything.
I did a breakdown/rebuild of the bowl components down to the spindle shaft, replacing all of the gaskets and looking for gouges in the stainless. I've ran a water/yeast mixture through it three times before moving to beer. Yesterday I moved 3bbls out of a 90bbl FV to a small 4bbl holding tank. Reasoning for this was to check D.O. levels before committing to an entire 90bbl transfer.
Attempted a C02 flush on the bowl before moving beer (we don't have D-water yet). I purposefully discharged 3 times during the 3bbl run. Beer is clear and bright, looks great. Stuck the DO meter on the receiving tank, was reading aprx 6.7ppm. FV was reading <10ppb. I know discharging 3 times during a 3bbl run is not the norm, and will cause elevated DO levels regardless of the centrifuge but 6.7ppm seems insanely high.
Anyone know of any other problem areas for oxygen pickup? We are working on getting a progressive cavity pump for the discharge offshoot, currently it is just connected via a flange to a big SS reservoir. I believe the brewery we bought it from used it as mentioned. It's not airtight. Could this be the obvious source?
I did a breakdown/rebuild of the bowl components down to the spindle shaft, replacing all of the gaskets and looking for gouges in the stainless. I've ran a water/yeast mixture through it three times before moving to beer. Yesterday I moved 3bbls out of a 90bbl FV to a small 4bbl holding tank. Reasoning for this was to check D.O. levels before committing to an entire 90bbl transfer.
Attempted a C02 flush on the bowl before moving beer (we don't have D-water yet). I purposefully discharged 3 times during the 3bbl run. Beer is clear and bright, looks great. Stuck the DO meter on the receiving tank, was reading aprx 6.7ppm. FV was reading <10ppb. I know discharging 3 times during a 3bbl run is not the norm, and will cause elevated DO levels regardless of the centrifuge but 6.7ppm seems insanely high.
Anyone know of any other problem areas for oxygen pickup? We are working on getting a progressive cavity pump for the discharge offshoot, currently it is just connected via a flange to a big SS reservoir. I believe the brewery we bought it from used it as mentioned. It's not airtight. Could this be the obvious source?
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