That distinction matters. More than 100 documented cases can represent a major engineering, financial, and real estate problem without proving that ASR is common across the entire pool population.
TLDR: Is Concrete Cancer Common in Central Texas Pools?
- Concrete cancer is a documented Central Texas pool problem, not merely an internet rumor.
- A 2024 ASCE paper reported more than 100 affected pools in and around Central Texas.
- There is no dependable public denominator showing the percentage of all area pools affected.
- Pool age, builder, supplier, neighborhood, or visible cracking may justify questions, but none confirms ASR.
- Buyers and owners should focus on the individual pool’s condition, history, records, inspection findings, and testing.
What Does “Common” Actually Mean?
The word “common” can mean several different things. It may mean that a condition appears often enough for professionals to recognize a pattern. It may mean that many owners have reported similar problems. It may also mean that a large percentage of all pools are affected. Those meanings should not be treated as interchangeable.
Central Texas has enough documented ASR cases to justify industry attention, litigation, specialized inspections, continuing education, and changes to a widely used Texas REALTORS seller disclosure form. That supports describing the issue as significant and regionally important.
What the available public information does not establish is that ASR affects most pools, most newer pools, or a known percentage of pools built during a particular period.
What Has Been Documented in Central Texas?
A forensic engineering paper published through the American Society of Civil Engineers in 2024 reported that more than 100 pools in and around Central Texas were afflicted with alkali-silica reaction. The paper described varying degrees of cracking and noted that many affected pools were no longer retaining water.
That is meaningful evidence of a regional cluster. It shows that the problem has occurred repeatedly across enough pools to attract formal engineering study and coordinated legal action.
It does not provide a complete census of every pool in Central Texas. The reported number may not include undiagnosed pools, privately resolved claims, pools with similar symptoms caused by something else, or every case discovered after the paper was prepared.
Why We Cannot Calculate a Reliable Percentage
To determine how common ASR truly is, we would need two reliable numbers:
- The number of pools with confirmed ASR in the defined Central Texas area
- The total number of comparable pools in that same area and period
Public reporting provides documented case counts, but there is no complete public database of every pool, every diagnosis, every laboratory result, and every privately resolved claim.
The affected-pool count may also change as additional pools are evaluated. At the same time, Central Texas contains a very large number of residential and community pools built across many decades by different builders using different concrete mixtures and suppliers.
Without a trustworthy numerator and denominator, a percentage would create false precision.
Does This Mean the Problem Is Rare?
Not necessarily. “We do not know the percentage” is not the same as saying the condition is rare.
A defect can be uncommon across the total housing stock and still be financially devastating within a particular construction cluster, supplier network, project period, or group of affected owners.
The practical question for a buyer is not whether ASR affects one percent, five percent, or another percentage of area pools. The practical question is whether the particular pool under consideration shows warning signs, has a relevant history, or shares documented risk factors that justify further evaluation.
Are Pools Built After 2017 More Likely to Be Affected?
Public discussion has often focused on pools constructed in recent years, including pools built during and after 2017. That time period may be useful for identifying a pool that deserves additional questions, but it is not a diagnosis.
A construction year cannot tell us:
- Which aggregate was used
- Which concrete mixture was supplied
- Whether the aggregate was reactive
- What alkali loading was present
- How the concrete was placed and cured
- Whether the pool has experienced damaging expansion
Many pools built after 2017 may have no ASR problem. An older pool may still have structural, material, plumbing, or movement concerns unrelated to the current cluster.
Is Central Texas Geology the Cause?
Central Texas is known for limestone, expansive soils, drainage challenges, and significant residential construction. Those conditions can contribute to many forms of pool cracking and movement.
ASR, however, requires a particular combination involving reactive silica in aggregate, alkalis in the concrete, and sufficient moisture. The fact that a pool is located in Central Texas does not prove that its concrete contains the materials needed for damaging ASR.
Soil movement and ASR can also exist as competing explanations for visible cracking. That is one reason diagnosis may require more than a visual inspection.
Why Swimming Pools Present a Special Concern
Moisture is part of the ASR process, and a swimming pool is designed to remain in continuous contact with water. When susceptible concrete is present, that environment can support continued reaction and expansion.
A pool shell must also remain structurally serviceable and watertight. Even relatively narrow cracks can become important when they allow water loss, damage finishes, affect plumbing penetrations, or continue moving over time.
For an explanation of the chemistry, read What Is Concrete Cancer in a Swimming Pool?.
What Signs Should Central Texas Pool Owners Watch For?
Possible warning signs include:
- Map-like or irregular cracking
- Long cracks aligned with structural features
- Cracks returning after cosmetic repair
- Cracking extending beyond the plaster finish
- Movement in tile, coping, steps, benches, or decking
- Bulging, distortion, or separation
- Unexplained water loss
- Repeated finish failure
- White, clear, or gel-like deposits near cracks
- Engineering, testing, warranty, or insurance records mentioning ASR
None of these signs proves concrete cancer. Pool cracks can also result from soil movement, shrinkage, workmanship, plumbing leaks, hydrostatic pressure, drainage, corrosion, or ordinary finish deterioration.
For more detail, read Common Signs of Concrete Cancer in a Pool.
Does the Builder’s Name Prove Anything?
No. A builder, concrete supplier, subcontractor, neighborhood, or construction period may help a qualified professional identify records and possible patterns, but association is not proof that an individual pool has ASR.
Buyers should avoid treating informal online lists as final diagnoses. The correct approach is to gather the pool’s construction history, available concrete information, prior reports, repair records, and current inspection findings.
How Is ASR Confirmed?
A visual inspection may identify a pattern consistent with ASR, but confirmation can require:
- A detailed condition survey
- Crack mapping and monitoring
- Review of construction and concrete records
- Core sampling
- Petrographic examination
- Laboratory analysis
- Engineering evaluation of current damage and future expansion
A photograph, construction year, neighborhood, or social media discussion cannot replace that process.
Why the 2026 Seller Disclosure Update Matters
Texas REALTORS reported that its revised Seller’s Disclosure Notice, effective June 15, 2026, added Alkali-Silica Reaction, also known as concrete cancer, to Section 3.
A disclosure-form update does not tell us the prevalence rate. It does show that the issue has become important enough in Texas real estate transactions to receive a specific disclosure reference.
Sellers should answer based on what they know and preserve inspection, engineering, laboratory, repair, insurance, and warranty records. Buyers should understand that the disclosure is not a substitute for their own inspections.
Read Texas Seller Disclosure for Pool Damage for more information.
What Should Buyers Do With a Central Texas Pool?
Buyers should not assume every pool is defective, but they should take the pool seriously as a major property system.
A practical process includes:
- Review the seller disclosure and pool records.
- Ask when the pool was built and who built it.
- Ask about leaks, cracks, resurfacing, structural repairs, claims, and testing.
- Hire a qualified pool inspector in addition to the general home inspector when appropriate.
- Obtain leak detection, engineering, or materials testing when concerns justify it.
- Investigate insurance and financing before contract deadlines expire.
- Evaluate repair cost, uncertainty, future resale, and personal risk tolerance.
See How to Inspect a Pool Before Buying a Home and Questions to Ask Before Buying a Home With a Pool.
Should Buyers Avoid All Newer Pools?
No. Avoiding every newer pool would treat a risk factor as a diagnosis and could eliminate many homes without evidence that their pools are affected.
The stronger approach is targeted due diligence. A buyer may choose a deeper inspection based on age, visible condition, repair history, documentation, or other known facts.
Should Homeowners Test a Pool With No Symptoms?
Routine destructive testing of every symptom-free pool may not be necessary or practical. The decision depends on construction history, known patterns, warranty concerns, neighboring cases, planned sale, and advice from qualified professionals.
An owner who has no visible concerns but possesses information suggesting elevated risk may begin with a document review and professional visual evaluation before deciding whether core sampling is justified.
How This Can Affect a Home Sale
Even suspected ASR can affect a transaction when buyers cannot determine the likely repair cost before the option period ends. Confirmed ASR can affect buyer demand, negotiations, appraisal, insurance, financing, and future disclosure.
That does not mean the home cannot be sold. Clear documentation, professional evaluation, credible repair plans, transferable warranties, and appropriate pricing can reduce uncertainty.
Read Can a Pool Cause a Home Sale to Fall Apart? and How Concrete Cancer Affects Home Value.
Frequently Asked Questions
Is concrete cancer widespread in Central Texas?
It is a documented regional problem affecting more than 100 pools according to a 2024 ASCE paper, but there is no reliable public percentage showing how many of all Central Texas pools are affected.
Does every Central Texas pool built after 2017 have ASR?
No. Construction year may justify additional questions, but it does not confirm reactive aggregate, damaging expansion, or ASR.
Can I tell whether a pool has ASR from cracks?
No. Crack patterns may justify further evaluation, but several other conditions can produce similar symptoms.
Is Central Texas soil movement the same as concrete cancer?
No. Soil movement affects the structure from outside, while ASR is a reaction within susceptible concrete. Both can cause cracking and may require professional evaluation.
Should every pool buyer hire a separate pool inspector?
A dedicated pool inspection is often worthwhile, especially when the pool is older, complex, visibly damaged, poorly documented, or central to the buyer’s decision.
Can a repaired ASR pool still be sold?
Yes. Buyers will likely evaluate the diagnosis, repair scope, permits, documentation, warranty, performance, insurance, and price.
My Bottom Line
Concrete cancer is common enough in Central Texas to deserve serious attention, but the available public evidence does not support saying that most area pools are affected.
The responsible approach is to recognize the documented regional problem without turning every crack, newer construction date, or Central Texas address into a diagnosis. Focus on the individual pool, its history, its condition, and the evidence provided by qualified professionals.
