A vibrant YouTube thumbnail featuring an underground sewer tunnel system with arched concrete walls and flowing wastewater in the background. Bold, eye-catching text reading "What is Infiltration and Inflow (I&I)?" is prominently displayed across the center in bright yellow and white letters with thick black outlines and a subtle drop shadow for maximum readability. The sewer background shows realistic details like metal pipes, manholes, and water reflections, while a semi-transparent dark gradient overlay frames the edges to make the text pop. Dramatic lighting illuminates the tunnel from above, creating an engaging contrast between the industrial underground setting and the polished, professional title text.
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What is Infiltration and Inflow (I&I)?

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Understand what infiltration and inflow (I&I) is and how it affects your plumbing system. Learn the causes and solutions for this common issue.