Cannot upload a picture so to help visualize here is a movie clip/picture link of the concept only showing how the "T-siphon" works but using the Buon Vino Super Automatic Bottle Filler:
http://www.buonvino.com/P_BotFill.shtml -For filling my wine bottles as per the device instructions to start the siphon you suck on the small bottom "overflow tube" that is low near the ground when the flow regulator valve is "open".
My interpretation of how to construct the T-Siphon:
1 x nylon barb tee(T) (whatever size fits your siphon hose)
1 x cheap hose clamp
3 pieces of siphon hose(A,B,C):
A – top hose will be attached to the racking cane(if using) or directly inserted into transferring vessel. Must be long enough so the T connector hangs LOWER than the vessel you are racking liquid from.
B – bottom hose, inserted into receiving vessel on the ground.
C – middle hose is used to start the siphon by sucking pressure, has the hose clamp, needs to be at least as long as hose A since it should be held higher than the vessel containing the liquid when you start to suck.
To Build:
1. Using the T connect hose A and hose B together inline(a straight line).
2. Attach hose C to the one remaining T connector end(90 degree right angle), then attach the hose clamp to hose C.