Just wondering how you guys clean your plate and frame filters with pads between filtrations. Every place I've worked at does it a bit differently.
The last brewery I worked at ran acid through pads during CIP, but the filter was a secondary after the DE filter. The place I work at now uses plate and frame as the primary filter. We only backflush with hot water, cool, and pack with PAA. I am toying with the idea of running acid through them (phosphoric/nitric blend).
Of course when the pads get changed we do a full caustic cycle.
The first brewery I worked at ran caustic and acid through the pads and they lasted about a week, roughly 300 BBLs or so. This was also the primary filter.
The last brewery I worked at ran acid through pads during CIP, but the filter was a secondary after the DE filter. The place I work at now uses plate and frame as the primary filter. We only backflush with hot water, cool, and pack with PAA. I am toying with the idea of running acid through them (phosphoric/nitric blend).
Of course when the pads get changed we do a full caustic cycle.
The first brewery I worked at ran caustic and acid through the pads and they lasted about a week, roughly 300 BBLs or so. This was also the primary filter.
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