Wallace & Tiernan provides equipment used for the treatment of water, wastewater, process water cooling water, swimming pools, recreation pools as well as metering  of process chemicals. Wallace & Tiernan® Products is part of the worldwide Chem Feed & Disinfection Group of Siemens Water Technologies.  Manufacturing business centers are located in the United States, United Kingdom, Germany, and Mexico. There are also business and distribution centers located in Australia, Canada and China as well as manufacturer's agents and representatives around the world.