Tim,
it looks familiar to a case we had a couple of years ago (DE pump clogging, DE settling out faster). We were told by the manufacturer that the DE batch was within specs.
After trying product from another brewery and being able to chase the issue to that particular pallet, the manufacturer admitted to the fact that the furnace during production was not running at desired temperature and replaced the existing pallet: the problem was gone.
Since that experience we keep 2 weeks worth of functioning DE on hand before fully trusting a new delivery.
Prost,
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Thorsten Geuer
Brewmaster
Bayern Brewing Inc
Missoula MT
(406) 721-1482
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