MultiDrain M100D channels can be installed with three different invert types, Constant Depth, Sloping Invert or Stepped Invert.
1, Constant Depth Invert:
Refers to a linear drainage channel run consisting of channels which all have the same constant depth level invert, for example M100D 0.0. For further information regarding this type of installation please refer to our article “Will the Channels Work if Installed Level?” in the MultDrain section.
2, Sloping Invert:
This type of installation consists of MultiDrain M100D channels with a built-in fall (slope). ACO manufacture sloping channels from No. 1 through to No. 20 so it is possible to have a continuous fall for a maximum of 20m. To create a 10m sloping invert run you could use any ten continuously numbered channels, such as No. 1 to No. 10 or No. 5 to No. 15. For further information regarding this type of installation please refer to our article “Why Install Sloping Channels?” in the MultiDrain section.
3, Stepped Invert:
For a stepped invert channel installation you would utilise constant depth level invert channels of different depths to create a “staircase” where each step encourages the water to fall to the next depth, for example M100D 0.0 (130mm invert) to M100D 10.0 (180m invert) to M100D 20.0 (230mm invert) and on to outlet. To smooth the flow of water between the different steps ACO recommend using “step connectors” please refer to our article “What Accessories Are Available?” in the MultiDrain section for further details.
Please note, sloping channels are only available in our M100D range, if you are proposing to install either M150D or M200D these can only be installed as either Constant Depth Invert or Stepped Invert.