Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

The feed tap .
I think from memory the taper has Hole drilled right through and another one at right angle but only half way though ,ie in meets the through hole so basically a T
 Top of T. Inline with boiler and tap out let with the other leg opposite water inlet . This acts as. Blow down valve .
Rotate 1/4 turn so top of T is inline water inlet and opposite (blank)
Leg of T is out tap so pump water out tap,
 Rotate 1/2 turn so top of T is still across from inlet pipe to opposite and leg goes into boiler