My plaster is stained …
Dirt, leaf tannins, rust and other minerals can stain the finish of your plastered pool. If the stain is organic; left from a leaf or acorn for example, a small amount of granular chlorine added at that location and allowed to settle on the stain will usually remove it instantly. Other non-organic stains will not be removed by chlorine. Do not place chlorine tablets directly into the pool…they will stain and etch the plaster.
If chlorine doesn’t work, acid usually will. Draining and acid washing will remove a thin layer of plaster (and stains), exposing fresh, new looking plaster beneath. A No-Drain acid wash can also be performed, with varying results. For localized stains , a stain master tool can be used to deliver acid directly to the stain. Stains can also be sanded with pumice stones or wet/dry sandpaper.
ABC’s professionally trained Pool & Spa technicians pride themselves in keeping your pool or spa in top working condition. Whether you’re looking for dependable maintenance and upkeep or timely repairs, we’ve got you covered with the quality service you’ve come to expect from the ABC family.
Information Courtesy: www.poolcenter.com