Let's say that you have an open tank of water and a hose connected to the bottom of it. Water is flowing out of the hose. You then cover half of the hose with your thumb. Will the flow rate (liters/second) right before you cover the hole be the same, less, or greater than right after you cover it? I realize that as you let water flow out, the flow rate is constantly decreasing because the water level is constantly decreasing and thus the water pressure is also decreasing, which decreases the flow rate. DO NOT take this into account. Thanks!