In many cases, inflow and infiltration (I&I) accounts for up to 45% of the annual flow to treatment plants. Sources of I&I include leaky manholes, lateral connections and sewer mains. Yet, a majority of rehabilitation efforts focus solely on sewer mains.
The dollar amount spent to combat I&I can be hefty, but establishing an analysis-driven strategy can ensure you are getting the most out of your investment by dramatically increasing the amount of I&I resolved. Only after a comprehensive understanding of sewer condition can a prioritized set of improvements be planned and implemented.
In this white paper we discuss the total system approach to combating I&I and the tools available to evaluate the different elements of your sewer system. With concepts presented in this paper, not only will you get a comprehensive understanding of the condition of your sewer system, you’ll also be ready to develop a plan to cut I&I by up to half.