A clean, well-kept pool adds comfort and beauty to any backyard, especially during hot summers in Gilbert, Arizona. But over time, even the best-looking pool can start to show signs of trouble. Discoloration and surface stains are common issues that many homeowners deal with. These marks might start small, but if left alone, they can spread and take away from both the look and feel of your pool.
Most stains are caused by things like minerals, algae, or organic material that settles on the surface. When this happens, no amount of brushing seems to get the job done. Add in Arizona’s dry climate and high temperatures, and it’s no surprise that keeping a pool spotless takes a little more thought. Understanding why stains show up and how to go about fixing them is the first step in getting your pool back into tip-top shape.
Identifying the Cause of Discoloration and Stains
Before jumping into cleaning, it’s important to figure out what’s actually causing the stains. Not all pool stains are the same, and the way you handle them depends on the source. The most common causes fall into a few categories:
1. Mineral deposits – High levels of calcium or metals like iron and copper can leave behind white or rust-colored stains. These often form near the tile lines or along pool walls where water sits for long periods.
2. Algae growth – Green, yellow, or black patches on pool surfaces usually point to algae. These stains often feel slimy or gritty when touched.
3. Organic debris – Leaves, berries, and other plant materials can fall into the pool and settle at the bottom, leaving behind brown or dark blotchy stains.
4. Chemical imbalances – Pool water that is too acidic or not properly sanitized can lead to subtle staining that becomes more noticeable over time.
Here are some signs to help you narrow down the type of stain:
- Bluish-green or dark gray spots could point to copper or metal buildup.
- Brown stains forming rings by the waterline might come from leaves or organic material.
- White, crusty streaks or spots usually indicate excessive calcium levels.
- Stains that fade with brushing but return in the same spot are often due to algae.
Getting the stain type right makes it easier to find a safe and reliable fix, and prevents damage caused by using the wrong cleaning method.
Effective Cleaning Solutions
Cleaning stained pool surfaces takes more than just hard scrubbing. The right process includes proper chemical balance, careful product use, and choosing the right tools. Some lighter stains can be treated, but deeper or stubborn marks often call for experienced help.
First, test the water. Check your pH, chlorine, stabilizer, and calcium hardness levels. Balanced water helps prevent new stains from forming and improves stain removal.
Depending on what you see, here are a few cleaning ideas:
- Light mineral buildup: For white calcium spots, gently rub with a pumice stone. This works well on plaster and concrete, but skip this on vinyl to avoid tearing.
- Algae patches: Green algae might brush off with a stiff pool brush followed by shock treatment. Black algae is tougher and may need stronger, specialized algaecides.
- Organic stains: If a leaf has sunk and stained an area, a pool-safe enzyme-based cleaner can help lighten or remove the mark.
Always remember:
- Don’t mix chemical cleaners.
- Avoid harsh household products not designed for pool surfaces.
- Let your pool circulation run during treatment for even chemical distribution.
If stains return quickly or never seem to fade, there’s a good chance they’re deeper in the finish. At that point, a surface-level clean won’t cut it. That’s when remodeling becomes the better option.
Professional Pool Remodeling Options
If your pool surface stays stained after cleaning or has patches that just won’t clear up, remodeling could solve the problem. Some older finishes hold onto stains, and worn plaster or outdated materials make stains harder to remove. Remodeling provides a clean slate and updates your pool’s look.
Resurfacing your pool isn’t only about appearance. It improves how the surface feels underfoot and helps reduce future staining, cracking, and chalky buildup. Remodeling may also include updates like new tile, coping, lighting, and water features to make the pool more enjoyable.
Here are signs a full remodel might be the right call:
- The same stains show up shortly after cleaning.
- Your pool surface feels rough, looks patchy, or is visibly cracking.
- You see faded or aging finishes in several areas, not just one.
- It’s been more than 10 years since the last resurfacing or update.
In a hot desert climate like Gilbert, where the sun and mineral-rich water speed up wear, investing in a remodel is a smart way to bring life back to your pool.
Outdoor Concepts offers pool remodeling services that remove long-term staining and give your backyard a clean and modern feel. Whether you’re dealing with surface roughness or just tired of seeing the same stains return, remodeling creates a long-term fix while improving your outdoor space.
Preventative Measures for Long-Term Results
Once you’ve cleaned or resurfaced your pool, it’s time to keep it looking that way. Preventative care is the best strategy for avoiding future stains, especially during the hot summers in Gilbert.
Here are a few simple habits to follow:
- Check your chemical levels weekly. Balanced pH and strong chlorine levels help prevent algae and calcium buildup.
- Skim and vacuum debris regularly, especially after windy days or monsoon storms.
- Use a brush on pool walls, steps, and corners to prevent buildup.
- Keep your filter clean and run your pump long enough daily to keep water moving.
- Cover your pool during vacations or times when it’s not in use to limit sun and debris exposure.
If you’re regularly adding water due to evaporation, be mindful of mineral levels. Local water sources contain minerals that can gradually cause stains. Using a hose pre-filter when filling your pool can help reduce the risk of new mineral buildup.
Like housework, regular tasks go a long way in avoiding bigger headaches. A little upkeep now means fewer problems later.
Bringing Your Pool Back to Life with Outdoor Concepts
Dealing with pool stains can be frustrating, but they don’t have to take away from your summer fun. Whether you’re seeing chalky lines from calcium or dark patches from algae or metals, spotting the problem early and acting quickly helps protect your pool finish.
Long-term stains should never be ignored. They can signal deeper issues with your surface or water chemistry, and what starts off as a small spot can grow into a bigger fix if left alone.
That’s where Outdoor Concepts steps in. With years of experience working in Gilbert’s desert climate, the team knows how to turn dull, stained pools into fresh, inviting backyard features again. From surface staining to outdated finishes that need a full overhaul, proper care and pool remodels make a big difference.
Let your pool be the place you want to relax, swim, and enjoy all summer long. Clean, clear water on a smooth, refreshing surface makes every backyard moment better.
Ready to turn your backyard into a refreshing retreat under the Arizona sun? A professional pool remodel can eliminate stains, improve comfort, and bring new life to your outdoor space. Outdoor Concepts is here to help you create a beautiful, low-maintenance pool you can enjoy all summer long in Gilbert.