Akona® Congelz™ Waste Water Hardener (BOM #107069) is the perfect method to dispose of unwanted rinse water from any cement or concrete project. Congelz patented technology is great for mortars, stuccos, grouts, patching products, and other similar materials. Using Congelz solves the issues caused by cementitious waste disposal - no more clogged drains or dumping of product on job sites. Simply add the product to your rinse water, allow to harden, and toss the works in the trash! Environmentally safe! Passes EPA 9095.