Use:

• For safe backwater protection

Application:

• For toilets, sinks, showers, baths, washing machines
• Cellar steps up to 5 m², if the penetration of rainwater into the building during the backflow phase is prevented by a thresher or similar
• Dripwater connections on safety valves and heating equipment

Pre-condition:

• Free gradient to the sewage pipe
• Rooms with lower-priority use according to DIN 12056-4

Must not be used:

• For draining wastewater collected above the backwater level
• For rainwater, with the exception of cellar steps up to 5 m²