LOL@V12! It's been around for a long time! I'm just updating the threads in my sig.
The level of the fluid in it is the real secret: keep it as high as possible. Otherwise, it's all in the size of it. The popular 1/2" tee just don't cut it.
In fact, I might go back to 1 1/2" PVC parts...I just hate to order mode clear acrylic (actually this one is polycarbonate).