Simple question to those who know ?
Hot storage cylinder in back boiler y plan the heating coil connectors on the cylinder are male and about 33mm diameter external
In and out connectors on cylinder are female of 31mm internal diameter
Are these in fact what are advertised as 1 1/4 inch connections
The only connectors I have found to connect 22mm (coil) and 28mm (water) are discribed as compression ?mm x ?" iron are these the correct items
Im good at electrics but rubish at plumbing so waiting in hope