The First 30 Days After a New Pool or Resurfacing: What's Normal and What's Not

The crew is gone, the pool is full and it looks beautiful. Then you notice a fine dust on the floor, a shade that seems different from yesterday, and the water level looks a little lower. Is something wrong?

Most of the time, no.

A new interior finish — whether it's on a brand-new pool or a complete resurfacing — is still curing during its first weeks underwater. Some of what you see is the finish settling in. Some of it is your cue to pick up the phone.

This guide helps you tell the difference.

Quick answer: In the first month, some surface dust, gradual color changes and a few days of hazy water during start-up are common. Cracks, rough or flaking spots, stains that keep spreading, water that stays cloudy despite balanced chemistry, a water level that drops faster than evaporation explains, or new equipment noises are worth reporting to your contractor right away — with photos and dates.

Why the First Month Matters So Much

A cement-based finish like plaster, quartz or pebble doesn't simply "dry." It continues to harden and stabilize underwater, and the water chemistry during that period directly affects how it looks and how long it lasts.

That's why the start-up period isn't optional. At D&J, a complete resurfacing takes 3–4 days of hands-on work, but the whole process — from start to swim-ready — takes about a month and a half once you include the chemical start-up. Those weeks are part of the job, not a delay.

Your contractor should hand you a written start-up schedule. Follow theirs first. What follows is a general picture of what to expect.

The Start-Up Routine in General Terms

Brushing

New finishes release fine particles as they cure. Regular brushing of the walls, floor, steps and benches during the first weeks keeps that material from settling and bonding to the surface. Your contractor will tell you how often and with what type of brush.

Water chemistry

During start-up, chemistry is adjusted gradually and tested often. The goal is to keep the water balanced so it neither attacks the new surface nor leaves deposits on it. Don't add chemicals on your own without checking with your contractor first — what works for a mature pool may not suit a curing finish.

Things to hold off on

Common start-up instructions include waiting to swim until the contractor gives the go-ahead, holding off on automatic cleaners, and keeping metal objects, toys and furniture off the new surface. Ask about each one specifically for your finish.

For a broader look at what to organize before and during the project, see Can I Use My Pool During Resurfacing?

What's Usually Normal

Plaster dust

The fine, chalky material that collects on the floor in the first days is common. It should decrease steadily with brushing and filtration. What's not normal is dust that keeps appearing heavily week after week, or a surface that feels powdery when you rub it.

Color changes as it cures

Many homeowners panic when the color doesn't match what they saw on the first day. New finishes evolve. Pebble finishes in particular have natural variation built in. Give it time and judge the result after start-up, not on day three — while still noting anything that looks like a distinct stain or streak.

What's Not Normal: When to Call Your Contractor

Report these promptly, in writing:

• Cracks in the finish, especially if they grow
• Rough, flaking or chipping spots, or areas that sound hollow if the pool is drained
• Stains or dark spots that spread, or spots that weren't there on walkthrough day
• Water that stays cloudy for days even though chemistry has been balanced and the filter is running
• Water level dropping fast, beyond what heat and evaporation explain
• Wet spots in the yard, around the equipment pad or near plumbing lines
• New equipment noises — grinding, screeching, rattling — or drips at the pump, filter or valves
• Tile or coping that shifts, cracks or loses grout

Early reports are easier to diagnose and easier to fix. Waiting until the end of the start-up period can turn a small issue into a bigger one.