
Pluing. How to make a Venturi injector tee
Photo 2 shows the 22mm male to 15mm reducer cut down to about 3mm on the 22mm male end, with the 15m tube soldered in place Photo 3 shows the venturi in place in the tee junction. The two drawings below show the parts used to make the injector tee and, below, how the injector Tee coines pumped radiator circulation with the gravity feed hot water circulation.