This one drains in 12 seconds, but only contains 150ml due to the reduction of the inner diameter at the bottom. The average flow rate is 12.5 ml/sec vs 2.2 ml

This one drains in 12 seconds, but only contains 150ml due to the reduction of the inner diameter at the bottom. The average flow rate is 12.5 ml/sec vs 2.2 ml/sec before, so it's 5.6x better!