Pup-Drain™ is a polymeric sheet designed to allow for optimal drainage of Pup-Grass™ when used on concrete slabs and other hard surfaces. The dimpled design creates a channel so liquids can travel to floor drains more efficiently. Another important feature is it protects the backing from damage due to concrete chemical leaching and abrasive wear. It prevents porous surfaces like concrete, slate, or tile from absorbing urine. It is also available with perforation for installation over soil.