I just bought an Albion superduty CF120 cylinder & notice that there's an extra (undocumented) 22mm connection near the top of the cylinder on the cylinder body.
Is this to provide an essex style takeoff for a pump?
If I want to use this, how do I shape the end of the 22mm pipe going into the cylinder to make it perform as an essex flange?
I'm a bit disappointed to see with this cylinder that the cold water connection is 22mm as well - 28mm being recommended by my pump manufacturer...