In 2018 the team of Queen’s University resumed the investigation of the former Marini Vitalini vineyard, completing the excavation of the cavaedium of the hypogaeum of Clepsina. The structure is a deep pool with flat bottom and is accessible through a stairway. In the E corner, a tunnel (22 m long) enters the pool. Another tunnel at a lower level intersects the main one near its end. The entrance to the tunnel was blocked with a wall and plastered. The fills of the cavaedium and the tunnels are rich in finds of the early Imperial period. Architectural pieces are especially abundant in the cavaedium.
The tunnel behind the painted niche of the hypogaeum was also excavated. Its floor slopes towards the niche and two wells open in its ceiling, one in the middle and one at the end. The fill was rich in Roman pottery, in particular jugs and beakers.

A trench was opened NE of the cavaedium, uncovering two parallel walls of large square blocks of tuff, probably terracing the slope near the cavaedium. NE of the walls were found earlier layers, dating to the Archaic period, in association with post holes and traces of structures of perishable materials.