Before You Start:

1. Though the lock model is built to withstand hard use, it is not unbreakable. Be careful not to put any weight on the unit.
2. Remember, when you work with water things tend to get wet; especially if your not paying attention to what you are doing.
3. The default position for all valves is closed. If you open one, remember to close it. If you don't, you might get wet.
4. If you are not sure what will happen, give it a try and find out. Most of the learning from this module will come from making mistakes. Note that if you make a mistake, you might get wet.
5. It is a good idea to have a towel or two in case you get wet.

Going Up the Lock

1. Make sure all the valves are closed. To close the valves move the valve handle perpendicular to the valve.
2. Fill the supply bottle with water.
3. Start with boat in lock #1.
4. Fill lock #1 by opening the inlet valve and control valve #1. Fill the lock to about 2 cm below the edge of the lock.
5. Open valve #2 and fill lock #2 until the water level in lock #2 is even with the water level in lock #1.
6. Lift gate #1, thus connecting lock #1 and #2, give the boat a tap to navigate it through the lock, replace gate #1.
7. Repeat procedure to move boat between locks #2 and #3, and locks #3 and #4.

1. Make sure all the valves are closed.
2. Since you just moved the boat from lock #3 to lock #4 the water levels in these two locks should be even. Starting with the boat in lock #4 turn the boat around so it is facing "downhill".
3. Open gate #3 and move boat into lock #3.
4. Open drain valve (be sure the tube is in the bucket or you will have a wet floor). Open valve #3 and drain lock #3 until the water level is even with the water level in lock #2. When the water levels in lock #3 and #2 are even, close valve #3.
5. Open gate #2 and move boat into lock #2.
6. Repeat procedure to move boat between lock #2 and #1.