Kessel Staufix Basic Einbau- Und Bedienungsanleitung Seite 7

Contents
1. General
2. Installation
3. Inspection
4. Maintenance
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1.1 Use ............................................................................................................................................. Page
1.2 Construction ........................................................................................................................... Page
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4.1 Cleaning of the single flap backwater valve and single flap backwater valve
every six months .................................................................................................................... Page
4.2 Servicing of the double flap backwater valve every six months by a specialist Page
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