On 6 July, 11:52, Tom wrote:
On 5 July, 21:02, Rednadnerb wrote:

It's not one of those special offers from Screwfix by any chance?
It eventually took 50 turns of (normal thin) ptfe tape to get a seal
on the one that I have just put in.

No its from B&Q, but its worth noting the chrome finish is truly
appalling to boot. This has to be a parallel valve tail fitting not
tapered.

btw. I have just had a cheap one from Screwfix installed by a
professional plumber as part of a larger job and there where no
problems with that - comparatively the Screwfix rad was one of
unbridled excellence.

I have now used about 10-12 turns of PTFE (plumb centre stuff),
marking the tail with marker pen so as not to loose track..... and it
still leaks. You could well be right about the 50 turns. It wasn't
offering nearly as much resistance when screwing in as it should. I'll
experiment with more until there is more resistance on screwing it in.

Thanks for the help.
Tom

I hope you're not just screwing it in by hand. There are often lugs
inside the tailpipe that are engaged by a special tool to screw the
fitting home. (Though some have internal/external hexagons.) Obviously
you won't have a tool but usually a big screwdriver can be found to
fit & then use an adjustable spanner on the screwdriver.