Hi Steve,
I assume you are talking about the washing up bowl? I had 3 of these the first developed cracks in the bottom, so I brought another one at Discovery in Portsmouth, the same thing happened so I complained to Sterling and they sent another- although said they had no other problems. It happened again so brought a small round one in France . They seem to be made of a very brittle material.As swift/Sterling have now changed the design of the sink I would think you would have trouble getting one now.Have you tried Chichester Caravans?
Catherine