A year ago we experienced a significant change in our filtration day using the Pall HS-2000 40x40 filter sheets. We went from filtering 30bbl's in 3 to 4 hours up to an 8-hour day or longer depending on how many times we had to back-flush and resanitize. Once we recognized there was a problem and spent enough time trying to determine the source by ruling-out possible yeast problems to having stand-pipes manufactured for our fermenters to anything else we could think of. We spent almost a solid month on the phone with Pall trying to figure out why we may be having difficulty while at the same time the problems started, we also noticed that the outer packaging had also been changed from the previous shipment. Pall emphatically declared that it was our problem an not something with the filter media.
To make a long story short, I spoke to Bob Tyler at Pall yesterday in an attempt to check current pricing (I like to verify my current supplier's pricing every once in awhile) and relayed my concern due to the fact that we were still having the same problems and had just used up the last of the same batch of filter sheets that started us off on this journey. Bob acknowledged that they had determined at some point last year that in fact there was a problem where a production run of HS-200 pads were mistakenly packaged as HS-2000. The 200's apparently blind much faster.
We are moving forward with our next purchase of HS-2000's as we have been promised that the problem has been resolved. I would be interested in knowing if anyone else has in the past year, experienced similar problems with HS-2000's. We have our fingers crossed that filtration days will return to normal.
Cheers,
To make a long story short, I spoke to Bob Tyler at Pall yesterday in an attempt to check current pricing (I like to verify my current supplier's pricing every once in awhile) and relayed my concern due to the fact that we were still having the same problems and had just used up the last of the same batch of filter sheets that started us off on this journey. Bob acknowledged that they had determined at some point last year that in fact there was a problem where a production run of HS-200 pads were mistakenly packaged as HS-2000. The 200's apparently blind much faster.
We are moving forward with our next purchase of HS-2000's as we have been promised that the problem has been resolved. I would be interested in knowing if anyone else has in the past year, experienced similar problems with HS-2000's. We have our fingers crossed that filtration days will return to normal.
Cheers,
Comment