“Following our conversation, I have not carried out a cost saving exercise but I can give you the experience we have with Store Street plaza. The area has been sealed including the granite spheres which act as bollards. The area is cleaned once a week. A two man crew with a truck mounted power washer took four hours to clean the plaza.

Since the area has been sealed it takes the crew around forty minutes to wash down the plaza as food and drink staining is not embedded in the stone and does not require the concentrated effort that was previously required to remove it. The saving has been in time and allows the crew to move on to other areas instead of spending a half a day on one location.”

John McPartland Dublin City Council.