What kind of water filter should I install under my kitchen sink?

Under-sink water filters are an excellent choice for Ottawa homes, providing clean drinking water directly at your kitchen tap without taking up counter space or requiring frequent pitcher refills.

The best type depends on your specific water quality concerns. Reverse osmosis (RO) systems are the most comprehensive option, removing virtually all contaminants including chlorine, lead, bacteria, and dissolved minerals. These systems typically cost $300-800 for quality units and require professional installation to connect to your plumbing and drain lines. Carbon filtration systems are more affordable ($150-400) and excel at removing chlorine taste, odors, and many chemicals, though they don't address minerals or bacteria as effectively.

In Ottawa, our municipal water is generally high quality, but many residents still notice chlorine taste and want additional filtration for peace of mind. The City of Ottawa adds chlorine for disinfection, which carbon filters handle well. If you're in an older home built before 1950, you might want the extra protection of RO filtration due to potential lead service lines, though the city has been replacing these systematically.

Installation requires connecting to your cold water supply line and drain, which means cutting into existing plumbing. While some handy homeowners tackle this as DIY, improper installation can cause leaks and water damage. Most systems also need an additional faucet mounted beside your main kitchen tap. Consider having a licensed plumber handle the installation to ensure proper connections and avoid potential flooding.

Plan for ongoing maintenance - carbon filters need replacement every 6-12 months ($50-100), while RO systems require filter changes plus annual membrane replacement ($100-200). Factor these costs into your decision, as neglected filters can actually make water quality worse.

For a professional assessment of your home's plumbing and proper filter installation, request a quote from Ottawa Pro Plumbing to ensure your new system integrates safely with your existing kitchen plumbing.

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