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Backwater protection for waste water

outside the building

Where there is a gradient towards the drain

backwater valves, backflow pump systems and backwater lifting stations

Schematic diagram of a building with a backwater valve in the chamber

Solution 1:

with a backwater valve in the chamber

A backwater valve protects the vulnerable area from backwater using non-return flaps and, during normal operation, drains water via the natural gradient.

Schematic diagram of a building with a backwater lifting station in a chamber

Solution 2:

with a backflow pump or hybrid lifting station with a bypass in the chamber

A backflow pump or hybrid lifting station with a bypass protects the vulnerable area against backwater and drains the area during normal operation without the pump running.

Schematic diagram of a building with a backwater lifting station in a chamber

Solution 3:

with a backwater lifting station in the chamber

A backwater lifting station or hybrid lifting station protects the vulnerable area against backwater and drains it during normal operation without the need for pumping. In the event of backwater, drainage takes place via the backwater loop to the sewer.

RSE = backwater level, RSS = backwater loop

If there is no gradient towards the drain

protect lifting stations in the chamber against backwater

Schematic diagram of a building with a lifting station in a chamber

Solution 4:

using a lifting station in the chamber

Wastewater disposal via a pressure pipe through the backwater loop, even in the event of backwater from the sewer.

RSE = backwater level, RSS = backwater loop

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