A large cistern in the rear of the Wesleyan supplied the school's water supply.
In 1340 a large central cistern was added, followed by a pit in 1623.
Two larger cisterns supplied fresh and salt water to the many bathrooms in the house.
Underneath this, there remains a large cistern for collecting rainwater.
They came to a room, off to the left of the tunnel, that contained a large cistern full of water.
Initially, three large cisterns at the rear supplied the hotel with water.
Water also had to be brought from the island, and large cisterns were built to store it.
The water was collected in a large cistern near the Agora.
Below ground, the tower contains the largest cistern of the four castles.
For this task it was provided with large cisterns.