rear portion of trenching sled 16 and to the front of bury sled 32 the remote end of the tow cable 34 is fastened to a pulling means such as another ship or to a winch located on the shore or a truck located on the shore the underwater components that is the trenching sled 16 the bury sled 32 and associated hoses and cables are pulled along by tow cable 34 at the desired speed the barge 10 must naturally travel at the same speed the actual speed of travel depends on the condition of the bottom of the waterway for example larger pumps and a slower rate of travel are called for in an area where the bottom material is clay than where the bottom material is sand or soft mud the submersible pump 19 is suspended from the crane 21 by the cable 23 the high pressure water is provided by the water pump 17 which draws its intake water directly from the water body as shown in fig2 the system employs two water jets 20 coupled to the water pump 17 by two independent high pressure water hoses 18 and two suction hoses 24 coupled to the.