Pool Acid Wash Phoenix, AZ

What Is Acid Washing?

Acid washing—sometimes referred to as “drain and clean”—is a deep cleaning method used to strip away a thin layer of the plaster surface, removing:

• Algae and organic stains
• Metal or mineral stains (copper, iron, manganese)
• Calcium buildup and scale
• Discoloration from leaves, debris, or neglect
• Yellowing, graying, or black streaks
• Bacterial or chemical imprints
• Residue left after a green pool recovery

The process involves draining the pool completely and applying a diluted muriatic acid solution to the interior surface, then scrubbing and rinsing thoroughly. The result is a bright, clean plaster finish that looks dramatically refreshed.

Signs Your Phoenix Pool Needs an Acid Wash

Not every pool needs an acid wash—but if your pool has gone without one for several years or has suffered from poor maintenance, it may be time.

You may need acid washing if you notice:

• Persistent discoloration that doesn’t respond to brushing or chemicals
• Calcium scale forming on walls or along the waterline
• Deep stains caused by algae blooms or organic matter
• Black algae spots or streaks that remain even after treatment
• A general “dingy” or uneven appearance in the plaster
• Pool water turning green more frequently due to lingering spores
• Your pool hasn’t been drained or cleaned in 5+ years

In Phoenix, where pools are exposed to high heat, UV rays, and hard water, surface buildup happens faster than in cooler climates. We recommend evaluating for an acid wash every 3–5 years depending on use and water quality.

Our Acid Washing Process

At Orange Tree Pool Service, we follow a careful, multi-step acid wash process to deliver top-tier results while protecting your plaster, plumbing, and environment.

1. Pool Drain and Inspection

We begin by draining the pool completely, removing debris, and inspecting the surface for cracks or plaster damage.

2. Surface Prep

We apply protective coatings where needed, block off sensitive features, and ensure all pump and filtration systems are secured before the acid application begins.

3. Acid Wash Application

We apply a controlled mixture of muriatic acid and water across the interior surface, allowing it to foam and react with built-up stains. This is followed by scrubbing and brushing to lift discoloration and residue.

4. Thorough Rinse and Neutralization

After the acid has done its job, we rinse the entire surface with a neutralizing solution (usually soda ash or a commercial neutralizer) to safely halt the acid’s action and prepare the pool for refilling.

5. Refill and Chemical Balance

Once the pool is clean and safe, we refill it and perform an initial chemical balancing to protect your newly exposed plaster and prevent future staining.

Safety First: Why DIY Acid Washing Is Risky

Muriatic acid is extremely corrosive and must be handled with precision and full protective equipment. Improper application can result in:

• Plaster damage or surface etching
• Burns or serious respiratory injuries
• Environmental contamination from improper disposal
• Equipment damage if acid gets into pipes or pumps
• Long-term damage to your pool finish

As licensed pool professionals, we ensure all safety protocols are followed, including proper chemical handling, local water disposal compliance, and post-wash equipment inspection. Letting a certified team handle your acid wash means better results and zero risk to your health or investment.

Acid Wash vs. Chlorine Wash: What’s the Difference?

If your pool has experienced a recent algae bloom or water contamination, you may be wondering whether you need an acid wash or a chlorine wash.

• Acid Wash is best for mineral stains, scale, and deep discoloration in plaster.
• Chlorine Wash is used primarily to sanitize the surface after organic contamination like algae, mold, or bacteria.

At Orange Tree Pool Service, we’ll inspect your pool and determine which method is appropriate—or whether a combination of both is needed.

How Often Should You Acid Wash a Pool in Phoenix?

Because acid washing removes a thin layer of plaster each time, it’s not a treatment to perform frequently. Most pools can handle 1 to 3 acid washes during their plaster lifespan (typically 10–15 years).

We recommend:

• Every 5–7 years for well-maintained pools with occasional staining
• Every 3–5 years for heavily used pools or those exposed to hard water
• After green pool recovery when residual stains remain

If your plaster is too thin, brittle, or cracking, we’ll recommend an alternative treatment—or guide you through options like pool resurfacing.

Who Benefits from Acid Washing?

Acid washing is a popular service among:

• Phoenix homeowners preparing for resale or appraisals
• New homeowners moving into properties with neglected pools
• Real estate agents seeking to improve property presentation
• Airbnb or vacation rental owners wanting a fresh, appealing look
• Long-time pool owners maintaining their investment

Whether your home is in an older part of Phoenix or a newly developed community, we’ll bring your plaster back to life.

Why Choose Orange Tree Pool Service?

• Local expertise with years of experience in Arizona pool finishes
• Trained and insured technicians using industry-grade materials
• No-drain options available in select cases
• Transparent pricing with no hidden fees
• Flexible scheduling to minimize downtime
• Commitment to protecting your pool and property

We’re not just about cleaning your pool—we’re about delivering long-term care that protects your plaster, enhances your water quality, and brings pride back to your backyard.

Schedule Your Acid Wash Today

If your pool is looking tired, stained, or discolored, an acid wash might be the quickest and most affordable way to restore its appearance and improve your swimming experience.

Call Orange Tree Pool Service at (623) 343-0400 or contact us online to schedule a free assessment. Our technicians will evaluate your plaster, explain your options, and get your pool looking its best—fast, safely, and professionally.