Checked prices and parts from coffeeparts. 1x L-shaped fitting 1/4inch BSP male thread , 620563 AU$5.40 (Fitted to Boiler pointing up) 1x T-shaped fitting 1/4inch BSP female/female/male thread , 620559 AU$7.20 (Female end fitted to Male elbow pointing up) Pressurestat fitting to top female on T piece Female elbow fitted to male T, then male end into female straight fitting 620410 the male elbow and point it upwards for the antivac to screw into the female. 1x fitting 1/4-1/4inch BSP female thread , 620410 AU$3.40 2x L-shaped fitting 1/4inch BSP male to female thread , 620571 AU$14.40 1x 1/4inch BSP thread Anti-Vacuum Valves AU$12.50 Sub-Total: AU$42.90 GST: AU$4.29 Total: AU$47.19 That's the idea using KKs idea. Not sure if 620410 the straight fitting will be long enough, or if the T part male thread would be high enough to miss the boiler. Also if the T piece is too high the pressurestat might end up too high, and touch the steam tap.
