A waste stack is the main vertical pipe in a drainage system that carries wastewater from various fixtures to the sewer or septic system. It serves as a primary conduit for waste from sinks, bathtubs, toilets, and other fixtures within a building. Waste stacks are designed to handle both liquid and solid waste, making them crucial for effective waste management in plumbing systems. Proper installation of waste stacks, including correct sizing, venting, and support, ensures efficient drainage, prevents blockages, and maintains compliance with plumbing codes.
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