Water heater repair in San Angelo, TX

San Angelo's lakes, the Hickory Aquifer and drought

San Angelo draws from several reservoirs, and which one supplies the city depends on how much water each holds. O.H. Ivie Reservoir, east of town on the Colorado and Concho rivers, has become the main source and reaches the city by pipeline. Twin Buttes Reservoir and Lake Nasworthy, just southwest of town, are fed by the South and Middle Concho rivers and have long been the city's backyard supply. O.C. Fisher Lake, on the North Concho at the northwest edge of the city, is used when it has water to give.

The early 2010s drought pushed San Angelo's local lakes close to empty. By 2014, Twin Buttes and O.C. Fisher were measured at or near zero percent of capacity, and the city enforced strict watering limits while it built a 60-mile pipeline to the Hickory Aquifer near Melvin. That groundwater carries naturally occurring radium, which the city removes by ion exchange before blending it into the supply. The Hickory water is lower in total minerals than the surface sources, which helps the overall blend.

Even with the blend, San Angelo water is hard. Surface water from these reservoirs is rich in calcium, magnesium and sulfate, and it gets saltier as lakes evaporate in a long dry spell. Inside a water heater, that turns into a rocky layer of scale on the tank bottom, a crust on electric elements and a popping, rumbling noise once the layer gets thick.

Santa Rita bungalows, college area rentals and newer subdivisions

The Santa Rita neighborhood south of downtown and the blocks around the Concho River have some of San Angelo's oldest homes, including 1920s through 1950s bungalows and brick cottages with pier-and-beam floors. Heaters in those houses tend to hide in hall closets, enclosed back porches or laundry rooms built on later. Rio Vista, Bluffs and the established areas near Angelo State University have postwar ranches with heaters in garages and utility rooms.

Southwest and south San Angelo, around College Hills, Southland and the subdivisions along Knickerbocker Road and toward Lake Nasworthy, are largely brick homes on slab foundations from the 1980s on, and the gas heater usually stands in the attached garage. Military families from Goodfellow Air Force Base and students at Angelo State keep many homes in rental use, where turnover means a heater can go years without a flush in the city's hardest water.

Heat, dust and the occasional hard freeze

Concho Valley summers routinely reach the upper 90s and top 100, and closed garages trap that heat. Gas control valves, plastic drain valves and igniter wiring age faster in the heat. Dust storms and dry winds coat burner screens and air intakes, starving gas heaters of combustion air and causing pilot outages.

Winters are generally mild, but northers can drop temperatures sharply. During the February 2021 winter storm, San Angelo froze hard and water supplies were stretched, and homes with pier-and-beam floors or exposed lines in uninsulated garages saw burst pipes. Heaters in those spaces can be damaged when their supply lines freeze and split.

The problems plumbers see most in San Angelo

• Thick scale on tank bottoms that causes popping and rumbling in older heaters.
• Electric elements that burn out under a shell of Concho Valley minerals.
• Clogged drain valves that won't flow when finally opened for a flush.
• Dust-clogged burners and intakes on gas heaters in garages.
• Heat-stressed gas controls in closed garages during long summers.
• Neglected rental heaters near Goodfellow and Angelo State.

Water heater prices in San Angelo

A garage gas swap in a College Hills slab home usually sits at the lower end. Pier-and-beam crawlspace work in Santa Rita, attic installations and jobs that require cutting out scale-locked fittings cost more.

Texas licensing and San Angelo permits

The Texas State Board of Plumbing Examiners licenses plumbers in Texas, from apprentice through journeyman and master. Water heater installation and repair are plumbing work, and a licensed plumber must handle or supervise them. The board's online search lets you check any license number in a few seconds.

The City of San Angelo's building permits and inspections office issues permits for water heater replacements within city limits. Expect a plumbing permit for the tank and a gas or mechanical permit if the vent or fuel line is altered. The inspector looks at the T&P valve and where its drain line ends, plus the venting and gas connection.

Living with hard water in San Angelo

Scale is the main reason San Angelo heaters fail early. An annual flush keeps the layer manageable, and a heater that has gone several years without one may need a descaling treatment rather than a simple drain. Electric elements in hard water should be checked when they are replaced, and many plumbers recommend low-watt-density elements that resist scale.

Water softeners are common in San Angelo and make a big difference for heaters, especially tankless units. A tankless heater on unsoftened city water needs a descale at least yearly, and a scale-inhibiting filter before the unit is worth considering. Softened water also eats anodes faster, so pull and inspect the rod every couple of years once a softener is in.

Power, gas and choosing a heater

San Angelo is in a deregulated Texas electricity market: AEP Texas owns and maintains the poles and wires, while residents choose a retail electric provider. Atmos Energy is the gas utility for most San Angelo homes. Gas tanks are standard in most garages, while some older homes and rentals use electric. Incentive programs from AEP Texas and some retail providers have appeared at times.

For a family of four, a 50-gallon gas tank is the usual choice. Heat pump water heaters do well in San Angelo garages, since those spaces spend most months hot, but they need clear airflow and a condensate drain. Tankless units save space and energy but demand softened water or regular descaling to survive here.

Repair or replace in San Angelo

On hard San Angelo water, a tank that is flushed regularly can reach ten years or so, while one that is never drained may fail in seven or eight. A thermocouple, element or gas valve on a younger heater is worth repairing, and draining out the scale often brings a rumbling tank back to quiet. A tank that leaks, rusts at the base or is still packed with rock after ten years has earned a replacement.

Around San Angelo

Grape Creek and Carlsbad to the northwest are unincorporated areas with water supply corporations and county oversight. Wall and Veribest to the east rely on rural water systems and wells. Christoval to the south draws from wells and the South Concho, and Miles and Mertzon have their own small municipal systems. Tom Green County handles oversight outside city limits.

Water heater questions from San Angelo