What would be ψp (Pressure potential) of a fully flaccid cell?

When water flows into the cell and out of the cell and are in equilibrium, the cells are said to be flaccid. Pressure can build up in a plant system when water enters a plant cell due to diffusion causing a pressure built up against the cell wall, it makes the cell turgid. In flaccid cell, water does not stay back to build pressure potential ψp.