Nu-Calgon 4165-24 Drain-Solve®

Drain Solve is an alkaline-based drain opener which removes grease, hair, vegetable and other organic matter. It is non-fuming and it will clean and clear drains quickly. Simply pour it down the drain and let it work without fear of noxious fumes or reactions that may squirt corrosive chemicals into face and eyes. This product is NSF registered.

This product must be used in accordance to the following directions by HVACR professionals only.
For general drains, pour 16 ounces into the drain, allow to work 15-20 minutes, flush with warm water and repeat if necessary. For larger drains, use entire contents and allow to work 30 minutes; flush with warm water. To maintain drains, use 8 ounces for small and 16 ounces for large drains weekly.