Well, a plastic bottling tank implies to me that the contents of the tank are not being heated. One way to improve honey flow is to warm it. Have you considered a heated bottling tank?
While I suspect that you are not of a scale to support it, there are semi-automated honey fillers that can be set to a predetermined quantity. How much money are you prepared to spend?
While I suspect that you are not of a scale to support it, there are semi-automated honey fillers that can be set to a predetermined quantity. How much money are you prepared to spend?