Assembly instructions - KLARO GmbH

Assembly instructions for KLARO retrofit kits2. Preparation of the wastewater pit2.1. Work in the pitThe plant must be stable and durable. Any holes and/or slots in the dividing walls and outerwalls must be sealed permanently. Due to its harmfulness to the environment, bitumenmust not be used for sealing the plant. The entire plant must be completely tight both inorder to prevent water from entering and wastewater from leaking through the walls and inorder to prevent wastewater from passing through the dividing walls in an uncontrolledmanner. The effectiveness of the sealing measures taken must be verified and documentedin accordance with DIN 4261-1.The preparatory work in the wastewater pit is very important for permanent and safeoperation of the plant. Please be particularly careful when following these assemblyinstructions.Two-chamber pitThree-chamber pitFigure 2: Two-chamber pitExcept for an emergency overflow, alltransitions between the 1 st and the 2 ndchamber must be sealed above the highestwater level.Figure 3: Three-chamber pitAbove the highest water level, an emergencyoverflow must be provided in the dividing wallbetween the 1 st and the 2 nd chamber.The transitions between the 2 nd and 3 rd chambermust be designed as submerged openings. Theymust be of a size between DN 150 and DN 200.The upper edge of the openings must be at least300 mm below the water surface; the bottomedge must not reach down by more than half thewater depth.Figure 4: Emergency overflow in dividing wall2.2. Empty conduitAn empty conduit DN 150 with an inside pull wire and a gradient must be installed from theplace of installation of the technical equipment cabinet to the tank of the wastewater4 KLARO GmbH