Depth below invert is a space or certain depth of sump that function as rubbish/leaves or sediment trash to avoid blockage of outlet pipe.
In order to insert the space depth, users may click on “Node > Spread Input > Depth Below Invert”
Eg: Node 3 has Depth Below Invert of 0.5 m
The difference can be viewed in the Longitudinal Section after Analysis as per image below.
Longitudinal Section of Sump 3
As per example above, the Invert Level iterated is 29.95m. Since the depth below invert was 0.5 m, therefore the lowest invert level for that sump is 29.45m (29.95 – 0.5).
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