True H2O

Guadalupe County, TX

Whole-Home Filtration in Seguin, TX

One stack on the main line. Every tap protected.

Call (210) 726-6895

About the water in Seguin

Seguin is served by City of Seguin Water Department, which draws from Guadalupe River surface water treated at the Seguin Water Treatment Plant, supplemented by Carrizo-Wilcox Aquifer groundwater wells. Local water tests in the range of 15 grains per gallon, based on the most recent utility averages.

Seguin is the county seat of Guadalupe County and draws from the Guadalupe River treated at the city's surface water plant, blended with Carrizo-Wilcox Aquifer well production. The blended supply typically reads around 15 grains per gallon of hardness, consistent with the broader Guadalupe County profile. Seguin sits between the San Antonio metro and the Guadalupe River corridor, and its older housing stock often has no water treatment in place. True H2O serves both the Seguin city core and the rural areas of eastern Guadalupe County.

Common local water concerns

  • Hard water minerals (approximately 15 grains per gallon, Guadalupe River and Carrizo-Wilcox blend)
  • Total dissolved solids

Why Whole-Home Filtration fits Seguin

Whole-home filtration in Seguin centers on a catalytic-carbon block stack sized to your household flow. It removes chlorine, taste, and odor before water reaches any fixture, and it protects appliances downstream of the main line.

  • Catalytic carbon block sized to peak household flow.
  • Pre-sediment cartridge protects the carbon stage.
  • Bypass for landscape and irrigation lines.

Other services in Seguin

Nearby service areas

Posted by the True H2O Team. Service area pages reflect water-utility data published by each county's primary water provider.