Passage manholes and at the foot of the downspout with collector dwg

This is a new system for passing sewage collectors through the passage manhole or at the foot of the downspout. if instead of cutting the collector we leave it continuous and only open a hole so that the dirty water falls directly into the collector and does not cause deposits of solid materials at the bottom of the manholes. they are also easier to clean in case there is a lot of sediment at the bottom of them.