Based on the construction plan, Roland set up a workroom with all the equipment to build an efficient Three Supplies Project system.
The complete set of equipment included a steam engine, an electric motor, a power supply unit, a boiler, and two water tanks. Together with the water tower outside the room, they formed the workings of the Three Supplies Project system.
The steam engine pumped the water up into the water tower and the water tanks. The former was to provide the residential communities with water for domestic needs. The latter was the water supply for the boiler and the heating system. The first-level water tank was higher. Limestones and washing stones which were used to soften the water by precipitating magnesium and calcium ions in it were put inside the tank. The water in it would then flow into the lower second-level tank through a filter screen specially made by Soraya, which would stop the floating objects in the water from entering the second-level tank.
