Bohemians blitzed Waterford with two late first-half goals to record their first victory of the season.
Sam Bone's own-goal and a penalty from Dan Mandroiu earned the Gypsies a deserved three points on a blustery night at the RSC.
Bohs earned an advantage even before kick-off by winning the toss and electing to play with the wind.
Even the sunny south-east didn't escape the elements as the sheets of rain blowing towards Brian Murphy in the Waterford goal promised another hectic night for the ex-Bohemians stopper.
The Gypsies made full use of the conditions and won nine corners in the first half hour.
While Murphy dealt with most of those, he had to be alert to the visitors' ploy of firing efforts from distance.
Waterford seemed to be holding on for the break until they self-destructed on 42 minutes. There appeared to be no danger from Kris Twardek's right-wing cross but Bone at the back post misjudged his angles by heading his attempted clearance inside the post.
Still reeling, Waterford dealt themselves another blow on half-time, Scott Allardice shoving Mandroiu in the box in front of ref Paul McLaughlin. Up stepped the victim to send Murphy the wrong way with a rasper.
WATERFORD - B Murphy; S Bone, A Odimayo, A Burley, T Wilson (W Longbottom 60); S Allardice (S Griffin 71); A Coote (G Cummins 81), R McCourt, K O'Connor; M Smith, M O'Connor.
BOHEMIANS - S McGuinness; M Barker, R Cornwall, D Casey, A Breslin; JJ Lunney, K Buckley; K Twardek, D Mandroiu (R Tierney 90), K Ward (A Wright 82); G McAuley (D Grant 73).
Ref - P McLaughlin (Cavan/Monaghan)