How to Choose the Right Water Filter | Ask This Old House

Ask This Old House plumbing and heating expert Richard Trethewey explains how to choose the right water filter for different water quality issues.
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Time: at least 1 hour

Cost: $20-$1000

Skill Level: Beginner

Shopping List:
Water quality test kit
Water filter

Steps:
1. Purchase a water quality home test kit.
2. Follow the instructions on the kit and wait for results on water quality issues.
3. Based on the results of the test, choose a filter that will treat the water quality issue.

Resources:
All the filters Richard demonstrated, including the granular activated carbon filters, sink mounted filters, sediment filters, and water softeners can be purchased at a home center or plumbing supply store.

Expert assistance for this segment was provided by Morris Merchants (morrismerchants.com)

About Ask This Old House TV:
Homeowners have a virtual truckload of questions for us on smaller projects, and we're ready to answer. Ask This Old House solves the steady stream of home improvement problems faced by our viewers—and we make house calls! Ask This Old House features some familiar faces from This Old House, including Kevin O'Connor, general contractor Tom Silva, plumbing and heating expert Richard Trethewey, and landscape contractor Roger Cook.

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How to Choose the Right Water Filter | Ask This Old House
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