Disabling photo transistors?

[Ermin]

I want to disable the "drip sensors" on my perisaltic feeder pump. After opening the pump unit, I found two sensors located close to where the drip capsule is at. I'm guessing they are photo transistors(?). The sensors face each other with the drip capsule in the middle. The sesors notify the unit if there are actual liquid passing through. Each sensor has two legs. One longer than the other, I'm assuming its like cathode and anode ends on LEDs. Each leg has a wire connected to it...so there are a total of 4 wires. The four wires then connect to the main electronic circuit board.

I don't know if there is an easy way to bypass the sensors (ie. close each pair of wires with resistor?).

Any help is greatly appreciated.

[Ermin]

Sensor.jpg:
Labels "A" and "B" are the locations where the photo diode sensors are at. The curved center is where the drip capsule sits. Two wires connect to each diode (is that what the part is?) via a brown connector.

Photodiode.jpg:
One photo diode by itself. Notice the long/ short legs.

Front.jpg:
The side of diode that faces the drip capsule.

Back.jpg:
Back of the diode.

[Ermin]

Please go to the following link for pictures and info of my dosing pump.

http://jean.yen.tripod.com/id60.htm