"The Medway Handyman" wrote in message
...
Roger Mills wrote:

Could it be 5/8" BSP? You can get 5/8 to 3/4 adapters.

Could be, but very rare - especially in a new build?

The havn't sneaked in metric taps without telling us have they?

It is already an EU requirement that we only use metric threads, which is
why BSP is, officially, a metric thread.

Colin Bignell