Hi,I have 2 optical sensors connected to level 2 via splitter.I have set sensor 2 and 3 to leakage detecion with a responce time of 1s.Ihave mounted these directly to the floor with the sensor facing downards.I had a mini flood on Monday with both sensors getting wet,but there was no alarm.If i take the same sensors and dip them into water in my sump the alarm sounds.Could it be that the sensors are not sensitive enough?????