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The SIOUX CHIEF 861-3PNW2 is a 3-inch PVC Square Max floor sink designed for commercial and residential plumbing drainage applications. This unit ships complete with a stainless steel debris basket and a half nickel grate, giving the installer a ready-to-set assembly straight out of the box. The PVC body resists corrosion in wet service environments, while the stainless steel debris basket catches solids before they enter the drain line. Licensed plumbers install this floor sink in kitchens, mechanical rooms, laundry areas, and other spaces that require controlled floor drainage with accessible cleanout capability.
The 861-3PNW2 fits into floor-level drainage systems where a 3-inch PVC connection is required. The Square Max body profile maximizes the drain opening relative to the installed footprint, making it a practical choice in tight slab penetrations or renovation work where the rough-in is already set. The included half nickel grate provides a finished appearance while maintaining flow capacity. This unit is suited for light commercial kitchens, food service prep areas, laundry rooms, and mechanical equipment rooms that require floor drainage protection.
Designed as an OEM-style replacement or new-installation floor sink for 3-inch PVC drain systems in residential and light commercial plumbing applications.
Installation should be performed by a licensed plumber in accordance with the applicable edition of the International Plumbing Code (IPC) and local amendments. Set the floor sink level in the slab or floor assembly before the final pour or finish, ensuring the outlet aligns with the rough-in drain line. Shut off water supply and verify the drain line is clear before making the PVC connection. Do not over-torque or solvent-weld under tension; allow adequate cure time before returning the drain to service.
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