Austin Algae: Is Copper Tap Ruining Summer Lasers?

By Franklin Everett Shaw

November 5, 2025

The water in your glass, the pool you swim in, and even that sleek laser hair removal device you’re using to prep for summer in Austin, Texas, might be more connected than you think. We’re talking about copper, and its potential impact on our health and environment right here in the ATX. It’s time to dive deep into a local issue with potentially widespread implications.

Austin’s tap water has, at times, shown elevated copper levels. This isn’t just a theoretical concern. High copper can cause gastrointestinal distress, and long-term exposure can lead to more serious health problems.

But where is this copper coming from? Older homes in Austin often have copper pipes. As these pipes age, copper can leach into the water, especially if the water is slightly acidic.

The City of Austin monitors water quality, but it’s crucial for homeowners, especially those in older neighborhoods like Hyde Park or Travis Heights, to take proactive steps.

Here’s how to test your water for copper:

1. Purchase a certified copper testing kit. You can find these at most hardware stores or online retailers. Look for kits certified by the EPA.
2. Follow the instructions carefully. Typically, you’ll need to collect a water sample from a tap that hasn’t been used for several hours.
3. Send the sample to a certified laboratory for analysis. The kit will usually include instructions and a prepaid mailer.
4. Review the results. The EPA’s action level for copper in drinking water is 1.3 parts per million (ppm). If your results exceed this level, take action.

What action should you take? Consider installing a water filter certified to remove copper. A whole-house filter is ideal, but a point-of-use filter at your kitchen sink can also be effective.

Now, let’s talk about those algae blooms popping up in Austin pools. Many pool owners rely on copper-based algaecides to keep their water clear.

While effective at killing algae, these algaecides contribute to the overall copper load in the environment. Could this be a case of fighting fire with fire, inadvertently fueling the problem we’re trying to solve?

The answer is a resounding yes. Copper, while toxic to algae at certain concentrations, can also, in lower concentrations, act as a micronutrient, potentially promoting the growth of certain algae species.

Here’s the kicker: some algae can develop resistance to copper over time. This means you might need to use more algaecide to achieve the same effect, further exacerbating the problem.

So, what are the alternatives?

• Phosphate removers: Algae need phosphates to thrive. Removing phosphates from your pool water can significantly reduce algae growth.
• Enzymes: Enzymes break down organic matter that algae feed on.
• Ozone generators: Ozone is a powerful oxidizer that kills algae and other microorganisms.
• Saltwater chlorinators: These systems generate chlorine from salt, providing a consistent and effective sanitizing solution.
• Good old-fashioned elbow grease: Regular brushing and vacuuming can go a long way in preventing algae growth.

Switching from copper-based algaecides can have a noticeable impact. You might see a slight increase in algae growth initially, but over time, the ecosystem in your pool will rebalance, and you’ll likely find that you need fewer chemicals overall.

Consider this: a homeowner in Westlake Hills switched from copper algaecides to a combination of phosphate removers and enzymes. They reported a significant reduction in algae blooms and a noticeable improvement in water quality.

But the copper connection doesn’t end there. Let’s talk about laser hair removal, a popular option for beating the Texas heat.

Some at-home laser hair removal devices advise against use if you have high levels of copper in your system. Why? Because copper can interfere with the laser’s effectiveness and potentially lead to skin discoloration or other adverse reactions.

While the science is still evolving, the concern stems from copper’s role in melanin production. Melanin is the pigment that gives skin its color, and laser hair removal targets melanin.

If you’re using an at-home laser hair removal device, especially if you live in an area with known copper issues like parts of Austin, it’s worth considering a water test and consulting with a dermatologist.

The challenges developers face when creating solutions for these issues are multifaceted. Creating accurate and affordable copper testing kits is one.

Another is developing effective and environmentally friendly alternatives to copper-based algaecides. This requires a deep understanding of algae biology and water chemistry.

A common pitfall is relying on anecdotal evidence rather than scientific data. It’s crucial to conduct rigorous testing and analysis to ensure that any proposed solution is both effective and safe.

Overcoming these challenges requires collaboration between scientists, engineers, and policymakers. It also requires a commitment to transparency and public education.

The situation in Austin highlights the interconnectedness of our environment and our health. By understanding the potential risks associated with copper and taking proactive steps to mitigate those risks, we can protect ourselves and our community.

Don’t just assume your water is safe. Test it. Explore alternative pool maintenance options. And be mindful of the potential impact of copper on your health and beauty routines.

This isn’t just about Austin, Texas. It’s a microcosm of a larger issue: the need for responsible chemical use and a holistic approach to environmental stewardship. Let’s make informed choices and work together to create a healthier future for ourselves and generations to come.