Heavy rains and flooding with mud or mulch entering the pool will also elevate metal levels. Even trace amounts of these metals (iron, copper, manganese, cobalt, silver) can cause staining. When metals appear in excess amounts they can adhere to the pool surface, requiring a metal sequestrant be added to the water to bind them until they are safely filtered out. The chemistry to accomplish this, however, is fairly complex and should only be done in consultation with a pool service professional knowledgeable in metal stain removal. Place 15 to 20 Vitamin C tablets in a sock and crush them. The steps outlined below represent an overview of the process and … Joseph P. Laurino, PhD, MBA Most metal stains can be removed from plaster, fiberglass or vinyl pool surfaces. Joseph P. Laurino, PhD, MBA Nothing bothers pool owners more than those unsightly blotches and discolor-ations on an otherwise unblemished pool surface. If you suspect a stain is caused by iron try the Vitamin C test. If you can't use CuLator for any reasons, below are more ways to control metal stains in your pool. Iron is fairly common in well water but rare in municipal water. When metals appear in excess amounts they can adhere to the pool surface, requiring a metal sequestrant be added to the water to bind them until they are safely filtered out. Pool Stains & staining caused by metals. Acids are used to remove underwater pool The problem is most people don't realize they have metals in their water. Pool water can look clear even at very high or very low pH levels, but this is no accurate indicator of metal contamination. Also, chlorine will eat up most of your ascorbic acid ending up using … Repeat this process until the pool is clean. MOST, but not all, staining on pool surfaces is preventable. 2. Fiberglass pools and plastic components are particularly prone to iron and copper stains. These tips are for smaller, concentrated swimming pool stains, a few inches or less in size. Back Where to start… How does the pool pump and filter work? Pool Metal Stain Removal The Stain & Scale chemicals above are used to control or prevent metal staining and mineral scale, and although they usually lighten existing pool stains, they often struggle with stain removal. Reduce FC level to 0ppm. He then treated it with granular chlorine to remove the stains and within an hour the pool surface was black. They also contain preventatives to help keep them gone. Metal remover is my best option because it works by removing heavy metals in your pool water through the filter, leaving your water clean and free of heavy metals that cause stains when chlorine is added or pH levels scale high. Follow the guide below to clear metal stains using ascorbic acid. Pool water with a low pH (less than 7) is Large stains covering a high percentage of the swimming pool plaster surface are usually from chemical reactions. The stains still came back and are slowly spreading around the pool. Metal Stains are the third most common problem in swimming pools. You know Metal Gone as the solution to removing metal stains in swimming pools. Here's why these metals stain. Colored water. When you are finally sure it's metal staining, you can use ascorbic acid to remove the metal stains from your pool. Step 1: Lower FC Level to 0ppm. If the stain vanishes or lightens … Iron In the vast majority of pools metal staining comes from iron. What you should know about your pump and filter Selecting the correct setting for your filter How to test your pool water Filling your new pool for the first time? So they usually try to treat for brown algea, and that does nothing. Hold the sock on the stain for 3 to 5 minutes. Staining is caused by organic matter such as algae, inorganic metals, or water trapped beneath plaster surfaces. What Causes Rust Stains in Pools and How Can They Be Remedied? If they're still there, add more ascorbic acid, and let the filter circulate the treatment for a half-hour. This image is of a pool that initially had mild metal staining. What type of pool lining do you have? Posted On : September 02, 2019 Over time, pool owners may encounter a number of curiously colored stains on the surface of their pool. Organic stains are caused by leaves, algae or other organic matter sitting on the pool surface. Many lawn and garden fertilizers can contain high levels of iron, copper, manganese and other heavy metals.