Pool Leak Detection and Repair in Geronimo, Texas
New Braunfels Quality Pool Resurfacing offers pool leak detection and repair in Geronimo, Texas, starting with proof that a pool is losing more than evaporation takes. Geronimo is an unincorporated community on State Highway 123, six miles north of Seguin in Guadalupe County, and it takes its name from Geronimo Creek.
Estimates are free. We'll go over how fast the level is dropping, whether an automatic fill is topping it up, and the county rules that apply outside city limits.
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Branyon clay, described from a pit near Geronimo
Guadalupe County's 1977 soil survey describes Branyon clay from a representative profile, a sample pit chosen to stand for that soil. It placed the pit six miles north of Seguin on Highway 123 toward Geronimo, then 2.5 miles west on the paved road to Friedens Church.
The same clay covers most of Geronimo. Within the community's Census boundary, flat Branyon clay takes up about 64.9 percent of the ground on federal soil maps, and gently sloping Branyon another 7.8 percent. Smaller areas are Houston Black clay (7.5 percent), Tinn clay (6.2) and Barbarosa silty clay (6.0).
The survey calls Branyon a deep, lime-rich clay on old stream terraces. Water drains through it slowly, and its permeability, how easily water passes through, is very slow. When it dries, water enters its cracks rapidly until they close. In federal soil data its shrink-swell rating is 13, above Houston Black clay's 12 and Barbarosa's 7.5. None of that tells you where a pool's water is going, which is why the loss gets measured.
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(830) 302-4112Why a falling water line is tested before it's topped up
Adding water hides a leak without fixing it. The National Plasterers Council says a pool should be watertight, which takes the shell and the finish together: pools are watertight, and not all are waterproof. A level that keeps dropping is worth measuring before the hose goes in.
Evaporation or a leak?
Some loss is normal. One pool maker's figure for average evaporation is about 1/4 inch a day, more or less with wind, heat, humidity and the size of the pool. Its version of the bucket test fills a bucket to the pool's own level. If the pool drops and the bucket doesn't, a leak is very possible. If both fall at the same rate, the cause is almost certainly evaporation. A leak-detection equipment maker adds that wind is a very big factor, and that it's generally weaker at night.
When an automatic fill masks the loss
An automatic fill valve can cover a leak by quietly topping the pool back up. The U.S. Environmental Protection Agency suggests switching the auto-fill off for 24 hours every three months to test for leaks. Fill valves can stick, it adds, and send water to the overflow drain.
For a concrete shell, the American Shotcrete Association, an industry body, knows of no water-loss standard written for pools. It points instead to a tightness test for concrete tanks. That test allows a loss of 0.05 percent of the water's volume a day over 72 hours, once the structure has been filled and left to soak for 3 days.
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(830) 302-4112Finding the leak: plumbing, fittings or the shell
Once the loss is confirmed, the search narrows. Every plumbing line gets a pressure test, which shows whether the water is escaping from the pipes or from the pool itself. In the pool, a little dye released near skimmers, returns, lights, drains and cracks shows whether water is being drawn out at that spot.
Signs at the surface help too. A crack-staple maker counts soggy ground near the shell as a warning sign. A leak-detection equipment maker lists a level that stops dropping at one height among its signs, and puts its underwater listening tool to work at that line. How each test works, including tracing buried lines by sound, is explained on the pool leak detection page.
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(830) 302-4112County rules for an unincorporated community
Geronimo is governed by the county, not a city. Guadalupe County's permit pages list nothing for a home pool. Its floodplain administrator permits man-made changes inside the mapped flood zone, and its Fire Marshal issues building permits for construction and remodeling outside city limits.
Public records don't name Geronimo's water supplier. A utility service-area map, listed on the county's Environmental Health page, shows which supplier covers which ground. If a repair means draining the pool, ask that supplier about its drought stage and its refill rules first.
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(830) 302-4112Geronimo's German beginnings
Geronimo began as a social center for German settlers who came from Schumansville in 1860. Among them were Robert Bretzke, William Kuehne, Earnest Staudman and August Weinert. A post office opened in 1891. In 1904 forty students attended the one-teacher school, and in 1945 the community had two gins and 123 residents.
Its population stood at 279 in 1968 and 250 in 1990, then reached 619 in 2000. The 2020 Census counted 1,097, living in 392 homes, 373 of them occupied. Geronimo Creek, which gave the community its name, is one of the two major creeks of the Seguin area, with Cibolo Creek.
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(830) 302-4112Beyond the leak: cracks, liners and new finishes
A leak that's found can lead to other work. A leaking crack in the shell may need injection or staples, and a vinyl liner that's torn or slipping may be due for replacement. A pool drained for a repair is also a chance to refinish it. We handle crack repair, liner replacement, replastering and new finishes.
Six miles down Highway 123 in the county seat, New Braunfels Quality Pool Resurfacing offers commercial pool resurfacing in Seguin.
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(830) 302-4112Leak detection and repair, in order
Leak-detection equipment makers and a federal water-saving guide publish these methods. Your own pool's search starts with the free estimate.
Run a bucket test
The auto-fill is switched off for a day while a bucket and the pool are compared, so evaporation can be set apart from a leak.
Test each plumbing line
Lines are tested one at a time with water under low pressure, no more than 20 pounds per square inch. A line that holds its pressure is cleared.
Dye-test the fittings and shell
Dye goes in beside skimmers, returns, lights, drains and any cracks, to see where water is pulled out of the pool.
Trace a buried leak
Air fed into a leaking line bubbles out into the wet soil, and a listening device picks up the sound through the ground or deck.
Make the repair
Some leaks are fixed on the same visit. Others need digging, cutting or a second trip, an equipment maker notes.
Refill and recheck
The pool is refilled within the supplier's rules, and a second bucket test shows whether the loss has ended.
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(830) 302-4112Get a free pool leak detection estimate
A Geronimo pool that keeps losing water is worth a call to New Braunfels Quality Pool Resurfacing, at any hour. Tell us roughly how far the level drops in a day.