In the early 1970's Rouyal Doulton brought a workforce down from Cheshire and opened a sanitary ware works at Queenborough. I wonder if it was in the old Pottery or did they build a new plant.
One of my wife's Uncle,s worked at the Pottery when It was Alfred Johnson and Sons. We have a Triangular Ashtray from there.
If I remember right the film "Carry on at the Convenience" was filmed at the site.