The Blues made it two from two in their pre-season games when Wexford visited the RSC last night.
Waterford took the lead after 9 minutes when David Webster touched home from a rebounding corner kick, with Izzy Akinade heading in a second for the home side on 24 minutes.
Bastien Héry made it 3-0 on the blow of half time when he slotted home a Paul Keegan corner.
Aaron Dobbs secured a consolation a goal for the visitors 11 minutes into the second half, before Waterford's Gavin Holohan scored his side's fourth on the hour mark.
Final score at the RSC: Waterford FC - 4 Wexford FC - 1