The phrase "water power train" refers to the means by which energy from running water is converted into power to drive the machines of the mill.

Water from the river is used to drive the waterwheel.

1. Water is diverted from the river Culm by a weir.
2. The water travels along a purpose-built leat (a small canal) to the mill.
3. The water falls onto the waterwheel, driving it round and round.
4. A giant cog attached to the waterwheel connects to another in the spur gear pit. The spur gear is connected to the overhead line shafts by a massive leather belt.
5. The overhead line shafts run the length of the factory floor.
6. From the overhead line shafts, smaller leather belts drive the individual machines.

After it has flowed over the water wheel, the water drains back into the river via a specially built stream.

Nothing is lost in the process, apart from the energy of the water falling on to the water wheel.

There is no pollution and no carbon footprint.

water; a source of green power for the mill