Whole House Water Softeners in Rowlett

Rowlett's water enters the city at three points. The 2025 Annual Drinking Water Quality Report describes three delivery points from the North Texas Municipal Water District, at the Liberty Grove, Rowlett Road and Merritt Road pump stations, which between them hold 13.5 million gallons of ground storage: two 1 million gallon tanks at Liberty Grove, 2 and 3 million gallon tanks at Rowlett Road, and 0.75, 2 and 3.75 million gallon tanks at Merritt Road. Four elevated tanks named Chiesa, Eula, Kirby and Main add 5.75 million gallons overhead. From there the water runs through 323.46 miles of mains, 6 to 36 inches across, to roughly 28,471 meters, and the report puts average demand at 5.52 million gallons a day in winter and 10.52 in summer. The city's Water Utility page adds that the water is pumped into the distribution system and elevated tower and watched through a SCADA control system. The water itself is purchased surface water treated at the district's Wylie plant; the report notes the district runs seven treatment plants, more than 695 miles of transmission pipeline and 20 pump stations, and has built Bois d'Arc Lake in Fannin County as an additional supply. The federal facility record for the system fills in the pumps behind those three points: four service pumps of 4,000 gallons a minute and two of 800 at Merritt Road, nine of 1,200 at Rowlett Road, and two of 500 alongside two of 1,200 at Liberty Grove, together with a 0.75 million gallon elevated tank listed as Martha that the report's own tank list leaves out, for 27,488 connections and 68,123 people.

The pump stations move the water; they do not change it. Page 8 of the report carries a table labeled as measurements reported by the district, and it lists total hardness as calcium carbonate at 96.0 to 200 ppm for 2025, 200 being the highest value. Total dissolved solids in the same table ran 182 to 455 ppm, and the district's water quality page says TDS on a report is a second way of reading hardness, since both rise and fall with the dissolved minerals. Total alkalinity as calcium carbonate was 43.6 to 138 ppm. By the district's conversion, 96 ppm is about 5.6 grains per gallon and 200 ppm about 11.7. On the USGS scale the low end is moderately hard and the high end very hard. The district's own summary is that its treated water is moderately hard owing to what Lavon Lake, its first source, carries in solution.

Rowlett's demand nearly doubles from winter to summer, and the hardness range is a full year's spread, so the reading at a Rowlett tap in February and the reading in August can land at opposite ends of 96 to 200 even though every part of town is fed from the same three delivery points. The Superior rating the report opens with is the state's designation for meeting water quality criteria; it says nothing about hardness, which the report itself files under constituents not regulated, with no adverse health effects attached. For a softener in Rowlett, size for the 200 ppm end, about 12 grains, and let a metered valve stretch the time between regenerations when the water runs softer. A free water test at your own faucet gives the figure for the day. The report's water loss audit for 2025 counts 315,244,213 gallons lost, 16,621,421 of them apparent losses in metering and billing and 298,622,792 real losses from the mains, numbers that describe the pipes and not the minerals in them.

Sources: City of Rowlett: 2025 Annual Drinking Water Quality Report · City of Rowlett: Water Utility page · North Texas Municipal Water District: Water Quality · EPA SDWIS water system facilities · EPA SDWIS water system record, TX0570056 City of Rowlett: population served 68,123