The steps to install a small distribution box include selecting a suitable location, installing the base, placing the distribution box, connecting the wires, and checking for acceptance. Warm reminder: Do not disassemble or modify without experience and professionals. Whether it is residential buildings, commercial facilities or industrial sites, the. In this guide, we'll break down everything you need to know to install a distribution box correctly and confidently. Choose the right box based on environment (indoor/outdoor), load capacity, and durability. This component ensures that effluent is evenly distributed across the leach field, preventing overloading and potential system. Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by the following indications. Meanings of symbols used in.