Internal gradient

We supply reinforced concrete slot units with integral internal slope of 0.5% for the drainage of traffic areas, industrial sites and car parks without longfall. A drainage line consists of a drainage shaft/manhole positioned in the middle with shaft base for connection to the sewer system, to which a cleaning channel is connected on both sides to every five slot units with internal gradient. 

In the standard case, the result is a 43 m long drainage line draining to the middle.
The drainage section can be extended infinitely by installing slot units without integral gradient between the shaft and channel No. 1.