Crown-drilling pumping sand:
Equipped studio and cabin crew, from the hull, flush systems, evacuation systems, sediment pumping systems, mobile systems and other components. Flush system includes a high pressure water pump, high pressure hose, suction salon top. Evacuation system comprises a vacuum device. Sediment pumping system including power (motor or diesel), clutch, pumping sand pumps, sand suction tube, flushing pipes, pipelines, buoys, etc. Mobile system includes boom, winch, windlass, etc.