Pentair Chlorine Taste & Smell Filter

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Water supplied to homes in Nez Perce County, including Lewiston City, comes primarily from surface water sources managed by the public water system. This system serves over 15,000 people and nearly 6,000 connections, treating the water through multiple processes to meet regulatory standards.

How does the water source type affect chlorine presence in the household supply?

Because Lewiston City draws from surface water, chlorine is commonly used to help maintain water quality during and after treatment. Surface water can be more susceptible to microbial presence, so chlorine acts as a disinfectant. This usage differs from groundwater sources, where chlorine levels often vary and disinfection approaches may differ. Knowing your system uses surface water helps set expectations about chlorine's role and presence in your tap water.

How is chlorine presence different from other common water issues like hardness or iron?

Chlorine is a chemical added temporarily for disinfection and can influence taste and smell. This is distinct from minerals like hardness or iron which occur naturally and affect water’s feel and staining potential. Chlorine typically does not cause permanent changes like mineral deposits, but its presence is often more noticeable due to its odor or taste. Understanding that chlorine is an added disinfectant clarifies it is not a natural contaminant but part of water safety management.

Do commercial or industrial water users in Nez Perce have different chlorine-related concerns?

Commercial and industrial operators often require water with consistent chlorine levels for process control or compliance. They may monitor chlorine residuals closely to balance disinfection with equipment protection. Households generally focus on taste and odor concerns, while larger operators consider operational parameters and regulatory monitoring. Thus, household needs for chlorine treatment usually differ from commercial requirements.

What changes should a household expect after using the Pentair Chlorine Taste & Smell Filter?

Once water passes through the Pentair system, chlorine-driven tastes and odors typically decrease, creating more pleasant tap water for drinking and cooking. The filter targets chlorine compounds specifically and aims to improve sensory qualities without altering other water characteristics. This equipment ships ready to configure, designed for routine household use to reduce chlorine-related sensory impact.

How can a homeowner interpret the public water record for chlorine-related issues?

The Lewiston City system’s public water record shows no EPA health-based violations among 42 assessments, affirming compliance with regulations. Treatment processes include multiple steps that address disinfection needs, signifying a managed chlorine presence. While chlorine presence is part of the treatment, the record does not indicate unsafe levels. To understand your home's water specifically, individual testing for chlorine taste and odor would confirm if filtration is beneficial.

What is the key test to confirm chlorine concerns in your household water?

The single test to order is a residential chlorine taste and odor evaluation. This test determines if chlorine concentrations at your tap exceed levels preferred by your household. Unlike system-wide data, this result reflects your actual water quality and guides the decision on using equipment like the Pentair Chlorine Taste & Smell Filter. Confirming your home's chlorine profile is essential before selecting treatment.

Where this information comes from

Source: EPA SDWIS public water system record. Sampled 2025-12-31. These figures describe the public water system's record, not the plumbing inside any individual building.

On record: EPA SDWIS record for LEWISTON CITY OF (ID2350014), surface water supply, serving 15001 people: 0 health-based violations of 42 total; lead 90th percentile 0.001 mg/L