In the first step, the fish follow the intake flow from Clifton Court Forebay where a floating trash boom and trash rack divert larger fish and trash away from the intake channel.
12.
A breastshot wheel requires a good trash rack and typically has a masonry " apron " closely conforming to the wheel face, which helps contain the water in the buckets as they progress downwards.
13.
Trash racks are designed for water velocity of around 2 feet / second ( 0.6 metres / second ) to prevent excessive energy loss due to the head loss across the trash rack.
14.
Trash racks are designed for water velocity of around 2 feet / second ( 0.6 metres / second ) to prevent excessive energy loss due to the head loss across the trash rack.
15.
For example, South Australia's Adelaide operates a number of such traps, known as " trash racks " or " gross pollutant traps " on the Torrens River, which flows ( during the wet season ) into Gulf St Vincent.
