Knowledge

I recently tested a “lead-free” fitting that contained 2% lead, reminding me that labels can be misleading. This discovery led me to develop rigorous verification processes that ensure only truly safe materials reach my clients’ drinking water systems. Modern PEX-copper fittings manufactured after 2014 must contain less than 0.25% lead to meet “lead-free” standards in […]

I recently replaced a 25-year-old PEX-copper system that showed minimal corrosion and was still functioning perfectly. The homeowners were surprised when I explained most modern systems should last even longer with proper installation and maintenance practices developed over recent decades. Properly installed PEX-copper transition fittings typically last 30-50 years in residential applications, with many systems

Having navigated California’s complex plumbing regulations for over a decade, I’ve witnessed the evolving status of PEX in the state. The situation is often misunderstood – while California has historically maintained stricter regulations than many states, PEX is not universally banned but faces specific restrictions and approval requirements that vary by jurisdiction and application. California

Through years of installing and maintaining both residential and commercial plumbing systems, I’ve tested PEX performance across various temperature conditions. While PEX offers numerous advantages for hot water distribution, understanding its temperature limitations is crucial for system design and long-term reliability. Modern PEX formulations have significantly improved high-temperature capabilities, but strategic planning remains essential for

As a plumbing professional who has specialized in water quality and material safety for over fifteen years, I’ve conducted extensive testing and monitoring of PEX performance in real-world conditions. The question of chemical leaching is understandably a primary concern for homeowners, builders, and regulatory agencies alike. Through rigorous scientific analysis and long-term field studies, we

Having worked with various piping materials in both residential and commercial water systems, I’ve encountered numerous bacterial contamination issues that often trace back to material selection and system design. PEX piping presents a unique case in bacterial management, offering both advantages and considerations that professionals must understand to ensure water safety. PEX demonstrates moderate resistance

Having installed and tested numerous PEX systems across different water conditions, I’ve witnessed the evolution of PEX technology from early taste and odor concerns to today’s highly refined products. Modern certified PEX pipes, when properly installed and flushed, typically have minimal impact on drinking water taste and odor, though understanding the factors that can influence