The answer is been staring at us the whole time. I have been thinking of the Rossi reactor as something like a US water heater where inflow must always equal outflow, because a reservoir is always full. I have been thinking that if the inflow is a steady 0.9 mL/s, the outflow has to be the same. But there is a reservoir that can hold different amounts, unlike a water heater.
Lewan measured the outflow at 18:57. It was 0.91 g/s. That indicates output power of around 2 kW. Looking at the "power in the vs power out" graph, at 18:57 indicated power was 2.5 kW. Close enough! http://a2.sphotos.ak.fbcdn.net/hphotos-ak-ash4/304196_10150844451570375_818270374_20774905_1010742682_n.jpg Earlier, at 16:51, indicated power was 8 kW. If Lewan had measured the outflow at that time he would have found it much faster, 3.5 g/s. We have no idea what average inflow was during this test. It was probably steady the whole time. Probably, at 16:51 when the power was high, the water level in the reservoir was falling, and at 18:54 the water level was rising. - Jed

