I want to share a short YouTube video that demonstrates quite nicely how to improve flow through a bottleneck using TOC concepts. I have watched it several times and I recommend that everyone should use it as part of your TOC training. I know I plan to.
As you watch it, think about Goldratt's 5 Focusing Steps.....especially Step 2, deciding how to exploit the constraint and then watch the video. You will see three different methods to empty a bottle of water along with cycle times for each method which get faster and faster.