Rex is unincorporated eastern Clayton County, served by Clayton County Water Authority, and we found no published hardness figure for CCWA water. Test before you buy a softener. Call the number on this page to be connected with a local plumber in Rex.

Is a softener worth it for a Rex home?
That depends on a number nobody has published. Clayton County Water Authority supplies water, sewer and stormwater service throughout the county, including unincorporated communities like Rex, the area around the historic Rex Mill and Rex Village. Its water comes mostly from the Little Cotton Indian Creek, Shoal Creek and Pates Creek watersheds, supplemented by the Flint River. Without a published hardness reading, a test at your kitchen tap decides it. A low result means skip the softener; visible scale on fixtures and a reading to match mean a properly sized unit is worth a look.
Most Rex homes are of moderate age, with a median build year of 1995 and about 20% built before 1980, so water heaters and fixtures, rather than old pipe, are usually where problems show up.
What should I know about CCWA before adding equipment?
CCWA handles a couple of things homeowners elsewhere do themselves. It installs backflow devices at customer connections and tests them yearly with its own state-certified specialists, so you don't hire a tester for those. It also completed a water service line material inventory and runs a public lead and copper portal where you can look up your property. Check that before choosing a filter for a specific concern. For main breaks or outages, CCWA's customer service line is (770) 960-5200; those are utility problems, not treatment ones.
Who issues the permit in Rex?
Because Rex is unincorporated, Clayton County Community Development's building permit section issues plumbing permits for residential remodels, repairs and new construction, from its office in Jonesboro. A whole-house softener or filter cut into the main is plumbing work, so ask your plumber whether your install needs a county permit.
One local note
For taste alone, a carbon filter under the kitchen sink is the least disruptive fix and doesn't touch the main line. Save whole-house work for a confirmed hardness problem or a planned water heater replacement, when the plumber is already working near the main and can tie everything in during a single visit, under one permit if one is needed.
Water Softeners & Filtration questions in Rex
Does my water utility publish a hardness number?
Should I check my service line before adding filtration?
Does installing a softener or whole-house filter need a permit?
Can a softener protect my water heater or tankless unit?
More plumbing services in Rex
Water Softeners & Filtration nearby
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