This article comes from The Spruce.
Your in-ground pool’s idyllic look—tropical blue or shimmering white—may have faded. As long as the water is in good condition, the cause of this dingy appearance is the pool’s finish on the sides and bottom.
Pools are constantly subjected to UV rays, chlorinated water, and user activity. So it’s no wonder that the average rubber-based pool paint lasts just about four to five years.
You can paint your pool in about a day or two. As with nearly every other type of paint job, the secret to beautiful, long-lasting results is preparation. If you properly drain and clean the pool, the paint application itself should go fairly quickly.
One of the best types of paint you can use for a pool is rubberized pool paint. Because it is designed for pools only, it adapts to the needs of pools. It expands and contracts; it is tough; it resists mold, mildew, and fungus; and it is not affected by pool chemicals.
Rubberized pool paint works well on new, unpainted pool surfaces. It’s also ideal for painting over existing rubberized paint because the new and old paint chemically fuse.
This paint cannot be used over previous epoxy or acrylic pool paint. It cannot be applied on fiberglass or vinyl-lined pool surfaces.
Purchase one gallon of paint for every 300 to 350 square feet of pool surface, depending on manufacturer specifications. Remember that two coats will be necessary when calculating how much paint is needed.
Use this formula to determine how much paint your pool requires:
Avoid painting your pool in direct sunlight. For this reason, it’s best to paint in the morning. Paint during temperatures above 50°F and below 85°F. The surface must be completely dry. Also, do not paint if you expect precipitation within a day or two.
Plan well in advance, because draining the pool is a long process. Depending on the size of the pool, it can take as long as 16 hours.
As the pool drains, use the pool brush and extension pole to scrub the sides of the pool. You do not need to constantly be at the pool, but stay nearby.
Scrub downward and let the debris fall into the draining pool water. The submersible pump will discharge some of this debris, but expect to clean up much of it by hand at the end.
With the pool dry, inspect the walls and bottom for flaking or peeling paint. Scrape with the 5-in-1 tool.
Sweep up debris from the bottom. Clean the pool with the citrus-based degreaser/cleaner, using the nylon-bristle cleaning brush. Hose the sides with fresh water and pump the water out. Make a final cleaning with the shop vacuum. Let the pool thoroughly dry.
Attach the paint frame to the extension pole. Add the roller cover. Set yourself up at the bottom of the pool, near the drain, with all the necessary tools. Cover the drain with a tarp or plastic.
Apply the rubberized paint to the pool by rolling it from top to bottom. Do not use a thick coat. Instead, apply two thin coats. Applying a single heavy coat may cause the paint to fail. Do not thin the paint.
Work quickly and in small areas, maintaining a wet edge. If an area is already drying, avoid painting over it, as this can cause pockmarks and a rough texture.
Clean up with mineral spirits or paint thinner.
Rubberized pool paint does not cure by evaporation, as do water-based paints. This solvent-based paint can take up to 7 days to fully cure before you are able to fill the pool with water again. Directing large fans to ventilate the pool will expedite the drying process.
Click here to see the original article.