Pool Acid Wash & Restoration FAQ

Standard residential pools run $400–$800. Larger and luxury Scottsdale and Paradise Valley pools with big plaster or pebble surfaces, or heavy staining, run $700–$1,200 or more. The two drivers are pool size and how bad the staining is. Send photos for a flat quote.

Roughly every 3–5 years for most Scottsdale pools. On hard water with light brushing, some pools need it sooner; a well-maintained pebble pool can go longer. Because each wash removes a thin plaster layer, we don't recommend doing it more often than the surface actually needs.

It depends on the plaster's thickness and age, but a typical plaster surface can handle a handful of acid washes over its life — not unlimited. Each wash removes a paper-thin layer. Once the plaster is thin, mottled, or showing exposed aggregate, resurfacing is the right call, and we'll tell you when you're there.

Yes. A true acid wash requires the pool fully drained so we can work the bare plaster in sections. There are no-drain acid treatments for tile and mild staining, but a full surface acid wash means draining the pool.

Per City of Scottsdale rules, pool water goes to the sewer clean-out on your property (drained slowly so it doesn't back up the line) or is used to irrigate your own landscaping if the chemistry is safe. It must never go to the street, alley, storm drain, or a neighbor's property. We handle this correctly on every job.

Draining a full pool takes several hours to overnight depending on size and drain rate. The acid wash itself is usually a day of work; the chlorine bath and refill add time. From empty to swimmable you're often looking at 2–4 days, largely driven by how long the refill takes.

Yes. Green, black, and swamp-water pools are one of our most common calls, especially at vacant homes, rentals, and snowbird properties. Depending on severity we drain-and-clean or do a full acid wash. Most green pools are clear blue again within a day or two of work plus refill time.

That's calcium scale, and Scottsdale's very hard water (200–500 ppm calcium carbonate) makes it almost unavoidable at the waterline. We remove it with bead blasting for heavy buildup or acid treatment for lighter scale. See our calcium and scale removal and tile cleaning pages.

Not when it's done right. Pebble finishes need a lighter, more careful acid touch than standard plaster, and an experienced crew works them in sections without over-etching. The wrong approach can dull a pebble surface, which is exactly why the crews we connect you with know how to treat premium finishes.

Yes. Scottsdale is our hub and we regularly work Paradise Valley estate pools, Fountain Hills hillside and golf-community pools, older Tempe rental pools, and Cave Creek custom and well-water properties.

Yes. The refill is city water on your meter — we don't mark it up. A typical residential pool holds 10,000–25,000 gallons and estate pools much more, so plan for a bump on that billing cycle. We give you the rough gallons up front.

Not in moderation. A properly done acid wash every few years is a normal part of pool ownership. The harm comes from doing it too often or too aggressively, which strips plaster prematurely. We only recommend it when the surface actually needs it.

If the plaster is structurally sound and just stained or scaled, acid wash — it's a fraction of the cost. If the plaster is thin, blotchy, or showing exposed aggregate, resurface. We'll look at photos and tell you honestly which one your pool needs rather than defaulting to the pricier job.

Fall through early spring is ideal, and spring is peak season as people open pools for summer. Acid washing works best in cooler conditions so the plaster doesn't dry too fast, and you avoid leaving the surface exposed to intense summer sun for long. That said, green-pool rescues happen year-round, especially in summer.

Yes. All draining, acid washing, calcium removal, and resurfacing prep is performed by licensed, insured local pool professionals. We connect you with vetted crews who do this work full-time.

Send photos of the whole pool, the waterline tile, and any bad staining, plus rough dimensions if you have them. We reply with a flat, up-front price for most jobs — no on-site sales visit needed. Get a fast quote through the form.