"Chris Bacon" wrote in message
...
Sorry, I don't know. Nonseals? I was apalled to go somewhere a while
ago abroad, where these things were in general use.The buggers leak.

I hadn't realised they were that bad. I've never had one before, but this
one came with it. I might pop in a compact standard one before I fit the
cistern then. In the past I've always fitted those two part syphons that
could be disassembled without removing the cistern from the toilet.

Christian.