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    Pool acid wash in French Valley showing a drained pool with clean bright plaster after stain removal

    Pool Acid Wash in French Valley, CA

    Swimming pool acid wash service that removes deep algae stains and hard water scale, and brightens dull plaster. We drain, wash, and refill so your pool looks new again. Locally owned and backed by a 100% satisfaction guarantee.

    Pool Acid Wash Services in French Valley

    An acid wash is a deep surface reset for your pool. Here are the specific jobs we handle during an acid wash to remove stains, scale, and dullness from your plaster.

    Algae Stain Removal

    When algae sets into the plaster, brushing and chlorine alone will not get it out. We drain the pool and apply an acid wash that lifts the green and black stains off the surface so your pool looks clean again.

    Hard Water Scale Removal

    French Valley hard water leaves a white crust along the waterline and tile. An acid wash dissolves that calcium scale and restores the smooth finish that chemicals and brushing cannot reach.

    Plaster Brightening

    Years of use dull the plaster and leave it looking gray and tired. An acid wash strips the thin stained top layer and brings back the bright, clean color the pool had when it was new.

    Drain and Clean

    An acid wash always starts with draining the pool. We drain the water, clean out the debris at the bottom, and prep the surface so the acid makes full, even contact with the plaster.

    Surface Assessment

    Before we apply any acid, we inspect the plaster for cracks, delamination, and thin spots. An acid wash removes a thin layer of plaster, so we make sure the surface is healthy enough to handle it.

    Refill and Balance

    After the acid wash, we refill the pool and balance the chemistry from scratch. Starting with fresh water means we set the pH, alkalinity, and chlorine to the right levels so the pool stays clean.

    Chemicals and Surfaces We Work With

    The right acid for the right surface, every time

    We use muriatic acid for most acid washes, which is the standard for removing algae stains and calcium scale from pool plaster. The strength of the mix depends on how bad the staining is and what type of plaster your pool has. We work with white plaster, colored plaster, and pebble finishes, and each surface needs a different acid concentration and contact time to clean without etching too deep.

    We also handle acid washing on pools with tile bands from National Pool Tile, Fujiwa, and other common brands. The tile needs to be protected from the acid, so we mask it off and clean the grout line separately with a gentler approach. If your pool has a fiberglass or vinyl liner, we tell you up front that an acid wash is not the right service, because acid damages those surfaces and there are better options for removing stains from them.

    Getting Started Is Simple

    We follow a careful process on every acid wash so your plaster comes out clean and bright without taking unnecessary damage.

    1

    We Drain and Assess

    We drain the pool completely and inspect the plaster for cracks, thin spots, and delamination. This tells us whether an acid wash is safe for your surface or if a replaster would be the better call. We give you a free written quote before any acid touches the plaster.

    2

    We Wash the Surface

    We mix the acid to the right strength for your plaster type and apply it in controlled sections. We scrub the surface to lift the stains and scale, then neutralize and rinse each section before moving on. We protect the tile, fittings, and equipment the entire time.

    3

    We Refill and Balance

    After the wash is done and the surface is rinsed clean, we refill the pool and balance the chemistry from scratch. We set the pH, alkalinity, calcium hardness, and chlorine so the fresh water stays clear and your plaster is protected from the start.

    Warning Signs You Need a Pool Acid Wash

    When brushing and chemicals are not enough

    These signs mean the staining or scale has gone deeper than the surface layer. Brushing and chlorine will not bring the color back, and the longer you wait, the more the plaster degrades. If you notice any of these, call us and we will assess whether an acid wash is the right fix for your pool.

    Watch For:

    • Your pool plaster has green, brown, or black stains that will not brush off.
    • There is a hard white crust along the waterline that chlorine will not dissolve.
    • The water looks cloudy or yellow even after you shock and balance the chemistry.
    • The plaster feels rough or gritty underfoot instead of smooth to the touch.

    Acid Wash vs Replaster

    We give you an honest answer, not a sales pitch

    An acid wash is the right call when the staining is cosmetic and the plaster underneath is still healthy. It removes the thin stained top layer and brings back the bright color without the cost and mess of a full replaster. We inspect the plaster for thin spots and cracks before we start, because an acid wash on plaster that is already too thin will expose the gunite and make the problem worse. We always tell you what we find in plain language.

    If the plaster is cracking, delaminating, or too thin from years of wear, an acid wash will not save it and could push it over the edge. In that case, a replaster is the smarter investment because it gives you a fresh surface that will last for years. We give a free written quote after seeing your situation, no pressure, so you can decide what makes sense. We only recommend an acid wash when it will genuinely fix the problem and protect your pool.

    Stains Will Not Brush Off?

    Get a free written quote for a pool acid wash in French Valley.

    Areas We Cover in French Valley

    Local crews who know your pool surface

    We acid wash pools across French Valley, from the family homes in Bridlevale to the established lots in Dutch Village South and French Valley Village. The hard water in our area leaves calcium scale on plaster fast, and we know which neighborhoods get the worst of it so we can plan the right wash schedule.

    Spencer's Crossing
    Dutch Village North
    Dutch Village South
    Quinta Do Lago
    French Valley Village
    Bridlevale
    Adeline's Farm

    Other Pool Services in French Valley

    We do more than acid washing. Explore the other pool services we offer across French Valley and the surrounding communities.

    Looking for pool service in a nearby city? See our French Valley pool service page for full coverage details.

    Common Questions

    Answers to the questions French Valley homeowners ask about pool acid wash service and plaster care.

    How often should I acid wash my pool?+

    An acid wash is not a regular service you schedule every month. Most pools only need an acid wash every 5 to 7 years, and only when the plaster is stained or scaled beyond what brushing and chemicals can fix. Each acid wash removes a thin layer of plaster, so we only recommend it when the staining is bad enough to justify it. We assess your plaster condition first and tell you honestly whether an acid wash is the right call or if a deep clean would do the job.

    Will an acid wash damage my pool plaster?+

    An acid wash removes a very thin layer of plaster, which is why we only do it when the staining justifies it. If your plaster is already thin from age or previous washes, an acid wash can expose the gunite underneath and cause bigger problems. We always inspect the plaster for thin spots, cracks, and delamination before we start. If the plaster is too far gone, we tell you and suggest a replaster instead of an acid wash that would make things worse.

    How long does a pool acid wash take?+

    A full acid wash takes a full day in most cases. We drain the pool first, which can take several hours depending on the size and your pump setup. Then we apply the acid, scrub the surface, neutralize and rinse, and refill the pool. The refill itself takes time depending on your water pressure. We give you a clear timeline before we start so you know what to expect and when you can swim again.

    Can you acid wash a pool without draining it?+

    No. A proper acid wash requires the pool to be drained so the acid makes direct, even contact with the plaster. There is no way to acid wash a full pool safely or effectively. Some companies offer a no-drain acid wash, but that is really just a chemical treatment that cannot remove deep stains or scale. If your pool needs a real acid wash, we drain it, do it right, and refill it with balanced fresh water.

    What does a pool acid wash cost?+

    Every pool is a little different in size, condition, and how bad the staining is, so we give a free written quote after seeing your situation, no pressure. The price depends on the pool size, how much scale and staining we are removing, and whether we find any plaster issues during the inspection. We walk you through exactly what is included before any work starts, so there are no surprise bills.

    Is an acid wash safe for my pool tile and equipment?+

    We protect your tile, fittings, and equipment before we apply any acid. Acid can etch glass tile and damage metal fittings if it sits on them too long, so we mask off those areas and work in controlled sections. We also neutralize and rinse the surface thoroughly before refilling. If your tile has heavy calcium scale, we can clean that separately with a gentler method that does not risk etching the glass.

    Let's Get Your Pool Perfect

    Call now or request a free estimate.

    (619) 342-5798Get My Free Quote