Why start-up matters
A new plaster or aggregate surface is still hydrating and hardening when the pool is filled. During that time it is especially sensitive to the water it sits in. Water that is too aggressive can etch the surface, and water that is too scale-forming can leave deposits. Getting the first weeks right gives the finish its best chance to look and perform as intended.
The general start-up process
The exact steps depend on the finish and manufacturer instructions, and you should follow the specific written directions you are given. In general, start-up involves:
- Filling the pool promptly and continuously, without stopping partway
- Starting the pump and filtration as directed
- Brushing the surface on the schedule given, to remove plaster dust and help the finish cure evenly
- Testing and adjusting the water chemistry in the ranges given for your finish
- Following any limits on adding chemicals, salt, or heat during the early period
Water chemistry basics
Several readings work together to protect a new finish. These are the ones you will hear most:
- pH: Too low can etch; too high can cause scale and cloudy water.
- Total alkalinity: Helps keep pH stable.
- Calcium hardness: Too low can pull calcium out of the plaster; too high can lead to scale.
- Sanitizer level: Keeps algae and bacteria in check without being excessive.
- Stabilizer (cyanuric acid): Helps sanitizer last in strong sun.
- Metals and minerals: Iron and copper can stain a new surface, and the source of your fill water matters.
Climate and water source in south Louisiana
Warm water and strong sun speed up algae and change how chemicals behave, so start-up here often needs closer attention than in cooler climates. If you fill from a private well, tell us; well water can carry minerals that stain a new finish, and it may need treatment or testing before you begin. Municipal water can differ in mineral content and chlorine or chloramine levels. Either way, testing before you fill helps.
Ongoing care
Start-up guidance does not stop after a few weeks. Regular testing, brushing, and consistent balance protect your finish year after year. Keeping the water in range is generally one of the biggest factors in how long any surface looks good. Different finishes may have slightly different care details, so check what applies to plaster, quartz, or pebble.
If you have questions after your resurfacing, reach out. The guidance on this page is general information, and the written instructions for your specific finish take priority.