Abstract: A cable guide includes an upper face and a lower face. The lower face has a generally convex form so as to lie in contact with the flow channel when fitted in the flow channel. The upper face has a generally concave form and is shaped to minimize disturbance of the flow when fitted in the flow channel. A passage is defined between the lower face and the flow channel having an entrance opening at a first end of the cable guide and exit openings on the sides of the cable guide towards a second end. By utilizing a cable guide, disruption to the flow within the channel by the entrance or exit of the cable is minimized.

Abstract: A cable guide includes a substantially cylindrical pipe section with a substantially outwardly projecting flange at one end. A channel is formed in the outside surface of the pipe section and extends from a first point at one end of the cable guide to a second point at the other end of the pipe section and further extends through the flange. The two opposite ends of the channel are located at different positions around the circumference of the pipe section. The channel is sized and configured to provide a passage for accommodating a cable. The channel forms a ridge on the inside surface of the pipe section which is shaped so as to minimize the disturbance to the flow of waste water through the cable guide and, therefore, to decrease the likelihood of blockages occurring.