DWA Industry Guide Watermanagement, Wastewater-Waste

3.1.1 Ready-for-connection pump stations with synthetic or concrete shaft

3.2.1 Pits without drainage

3.2.3 Small sewage treatment plants with wastewater aeration (DIN 4261)

3.2.4 Small sewage treatment plants without wastewater aeration (DIN 4261)

3.2.6 Maintenance of domestic sewage treatment plants

3.3.3 stormwater utilisation systems

3.3.5 stormwater infiltration

4.3.1 Petrol separators

4.3.2 Grease traps

4.3.3 Oil separators

4.7.1 Pressure drainage systems

5.1.1 Wastewater lifting installations

5.1.2 Wastewater pumps

5.1.16 Pump stations, ready for assembly

5.1.20 Pumps with comminutors

5.2.7 Pump control, regulating, switching devices

6.2.26 Small scale sewage treatment plants with sludge stabilisation

6.2.29 Compact sewage treatment plants

6.2.40 SBR plants