I am a new pool owner and have owned this pool for a little over a year. When salt is added to your pool, it can cause stains easily. All swimming pools have some sort of stains depending on the level of exposure to dirt, metals, and pool … Fiberglass pools and plastic components are particularly prone to iron and copper stains. Dirty Well Water In Pool … Blue/Green stains are usually from too much copper in the water. Testing for Stains In most cases, the best way to correctly identify a pool stain is to use a stain id kit. Salt added to a salt water pool - Salt is the most common cause of stains. Manganese – found in well water in some regions, this metal can cause a purple tint to pool water and brown/black or purple stains on surface. Brown scale is typically caused by dissolved metal deposits in a pool. Prime causes. You are so right, this stuff is MAGIC!! Since salt water pools are unique, this article will address ways to help prevent stains in these systems. Consequently, shocking the pool is a good way to get rid of it, but before you do that, you have to put in some manual labor. by Rita (Myrtle Beach , S.C.) When I took on this pool it had brown stains on the walls and floor. In the case of salt chlorine pools, the metal doing the stealing is typically the titanium plate in the salt chlorine generator cell, and the metal getting ripped off is copper from the heat exchanger or other copper sources, iron from steel screws, and other anodic metals present in pool equipment and fittings. Liquid Chlorine. Liquid chlorine will also cause brown stains after a period of time. Water discolorations can range from blue-green to dark brown. The owner had already planned for someone to come and replaster it. How to Remove the Stains From a Fiberglass Pool Frequent testing can help you maintain the optimal water balance. And best of all, the treatment is a fraction of the cost of an acid wash and you don’t have to drain the pool water! The first cause is the most common culprit of brown stains in the swimming pool. The warning signs of staining in salt water pools include mild streaking down the sides of the pool, or discolored pool surfaces or water. To diagnose and remove any swimming pool stain, start by identifying the color of the stain. Calcium or sodium salts can leave whitish deposits on your pool liner. Fixing Brown Rusty Water (Excess Iron) in Swimming Pool Water, p. 1. - Whose yellow colour is usually Iron. Brown Stains In A Gunite Pool With A Salt System That Has Been Replastered. What you’re left with is all the benefits of a Salt Water System and none of the drawbacks. Usually Iron which depending on the severity gives green through yellow to brown stains or Manganese which gives dark brown to black stains. Finally got it clear in late May, but late June pool had brown stuck to … To get rid of the stains, follow these steps: 1. When the iron concentration is too high, it leads to brown water discolouration.It is imperative that this iron concentration is reduced to under 0.2 mg/L, otherwise air oxidation could cause iron oxides to build up, resulting in brown stains. As the images show, we can completely remove salt stains from swimming pool surfaces. Salt Treat eliminates this by dissolving the stains of the surface and keep metals dissolved in water for up to 60 days. The iron will cause brown stains in the saltwater pool and manganese will cause dark brown or black stains. How to clean rust stains from your pool Amazingly simple! Mineral Pool Stains. Brown Stain on Gunite Pool Not rated yet I have IRREGULAR, BROWN, RUST-COLORED stains mostly in the SHALLOW END bottom of my GUNITE, salt water pool. How the iron gets there, why the discoloration comes and goes, how to permanently filter it out with simple towels & socks -- including reports from a hundred readers