Hi

I'm in the process of fitting a new bathroom suite and put the new
toilet/cistern together yesterday.

It's a modern close coupled type with twin button push flush. The
valve assembly is a weird looking thing (at least to me). There's no
overflow outlet - so I presume it has an internal (to the bowl)
overflow.

It also came with a little plastic inlet filter. Do I need this? The
toilet is fed direct from the mains, and is upstairs.

Thanks
Marc