PRO-PUMP/TST PLUS (Total System Treatment) from Ecological Laboratories is designed to provide inside and outside benefits in a bioformulation that cleans and deodorizes drainlines in a single monthly application. When used as directed, it can improve line flow, eliminate drain odor, and protect onsite wastewater systems by restoring the necessary biological action in septic tanks and absorption fields. It is a highly active, safe microbial formulation designed specifically to maintain drainlines throughout the home. 800/326-7867; www.propump.com.