I disagree. I'm not sure how much of the process is 'manual', but surely not 8 hours worth.
It is reasonable to assume they're running more than 8 hours. Maybe start a batch with a skeleton crew third shift and then bottle/package/send when folks come in to work the next morning. I'm not saying it runs 24 hours, but it's got to be more than 8.
Also, we know they have produced on the weekends before, as the order lady mentioned something about that to someone here who was ordering.. I forget who... but it was something about the Fed Ex truck making a couple of stops Monday AM to pick up all the stuff that had been produced over the weekend.
If they have enough to sell maybe they don't need a bunch of weekend shifts... but my theory is that most of our fluid is not going to 'sales' anyway, but is being sent to distributers for them to package and sell, and we are accounting for that some other way. We may not be going at capacity.. but I'm sure it's more than 5daysx8 hours.. and even if that's all it was it would likely be a product of us producing the underlying equipment rather than just focusing on producing fluid with the equipment on hand.