clean swath of 6 inches per pass would weigh about 2 pounds the carrier head has a central axis containing a connector 14 for communicating with the fluid supply carried by the wand not shown as shown in fig3 the connector has a supply conduit 15 ending in a blind bore 16 the blind bore 16 has several apertures about its circumference communicating with the bores 17 each spoke 12 has a bore 17 which carries the fluid from the supply conduit 15 to the nozzles 18 19 and 20 shown in fig2 the ring 13 is planar and the spokes 12 lay in the same plane this organization permits a simple production of the bores 17 parallel to the surfaces of the spokes 12 and normal to the blind bore 16 in the embodiment shown in fig 3 the bores 17 extend from the exterior of the ring 13 through the spoke to the blind bore 16 the external opening 21 of the bore 17 is closed by a plug 22 the nozzles 18 19 and 20 are located at the periphery of the ring 13 each nozzle is mounted at an angle to the plane of the spokes 12 and connected to the bores 17 by short angled passages 23 the particular angle is set to provide the width of the cleaning swath 24 as well as the dynamic action of the fluid upon the structural member being cleaned in the preferred embodiment the cleaning swath 24 is at least about three inches in diameter different carrier heads may have different nozzle angles for different purposes the ultra high pressure fluid ejected from the nozzles may be in the range of 25 000 to 60 000 psi and sufficient to clean different types of structural surfaces.