A.Y. McDonald Mfg. Co. introduces the ENVIROMAC 1¿Hp submersible sump pump for clear and surface water with built-in check valve for house, yard and garden. The ENVIROMAC is designed to be three pumps in one: automatic, manual and floor sucker. It is compact and fits in an opening as small as 8 inches. A vertical float switch with override allows this versatile pump to be operated manually or automatically. The pump also is made to be easy to install, dependable and environmentally friendly. A.Y. McDonald Mfg. Co.