In Taj Mahal, irrigation mechanism was a much planned and thought out design. It was no less than a challenge to ensure even pressure of water in all the fountains and the architect came up with an intelligent plan for installing the correct Taj Mahal water devices. The pipes of the fountains were not directly connected to the copper pipes that would supply water to them. Instead, each fountain was fitted with a copper pot underneath in which the water would get collected first and then due to pressure it would thrust the water upwards.
Thus, the pressure in the copper pots would be responsible for pushing
the water upwards and not the pipe that fed the fountain with water.
Since the pressure in the pots is evenly distributed all of the time, it
ensured smooth functioning of the fountains all over the garden. This
was truly the work of a mastermind and required not just clear thinking
but also a smooth planning and designing. It is surprising that even
during the ancient days people used to come up with brilliant
engineering and architectural ideas just to make sure that the garden
always remains irrigated.
The main supply of water was acquired from earthenware pipes that were
laid underground. One such main pipe was found in the western canal. The
garden was regularly irrigated through interconnected canals. The
North-South canals and East-West canals used to be overflowing and the
fountains provided these inlets for the canals. It is said hat the Taj
Mahal is the only monument in the world that had such a planned
irrigation system that works till date.