A water truck body comprising a floor, two side walls, a front wall, and a rear wall, a plurality of cylindrical baffle bodies with open bottom ends, a top plate situated on top of each of the cylindrical baffle bodies so that the cylindrical baffle body is centered underneath the top plate, and a tubular support structure. Each of the plurality of cylindrical baffle bodies comprises a plurality of apertures configured to permit liquid to flow through them. The tubular support structure is configured to hold the top plates and provide structural stability to the side walls, front wall and rear wall.