Maintenance of the automatic backwater valve Staufix FKA, exposed installation / floor slab installation Scope of services (all work is carried out according to the inspection card): - Functional check - Removing the locking cover and inspecting the cover seal - Removing the flaps, inspecting the flap seal, cleaning the components - Inspecting the electrical system components - Greasing the moving parts - Assembling the system - Leak test - Sealing the emergency closure (both flaps shut) - System must be handed over in a safe operational state - The recorded values are documented in a maintenance report Requirements on site: - Contact person must be on site - Access to the system and control unit - A hose water connection must be provided nearby Note: - Regular maintenance is a prerequisite for the warranty and insurance cover Not included are costs for: - Material expenses over 20 euros - Any additional incidental expenses are charged based on the expenses incurred - Difficult conditions, repair services, additional work - Wasted journeys despite prior notice Backwater valves must be serviced every six months by a specialist company in accordance with DIN 1986-3. The price stated is for each maintenance operation. From the commissioning to the execution of the service, a processing time of 10 working days should be expected.