Maintenance of the backwater pumping station Pumpfix F in a chamber 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, cleaning the 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 Chamber systems: - In the case of service work on chamber systems, according to BGV C5 § 34, BGR 236, the clearance measurements of sewer gases, the use of fall protection and for safety reasons an additional safety attendant are required. - The safety attendant must be provided by the customer and must be present for the entire duration of the work. 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.