What are these brown stains in my pool? Plaster more than 10 years old may need to be resurfaced. Will pool shock remove stains? These stains can be removed by acid-washing your pool after the water is drained from it. Hi Davy, Here’s a pool stain chart as a guide for metal stain identification in pools. Ask Question Asked 6 years, 6 months ago. Whether they are caused by organic materials or metals, stains can be hard to identify and remove. Brown stains in salt water pool among other stains can be problematic and unpleasant to handle. Now I am getting yellow stains on the bottom of the pool. The pool stain can be varying colors but most commonly is brown when it develops on white plaster steps and the stain is dark grey, light grey or rust colored when it develops on colored plaster steps. Don’t add Pool Stain Treat® directly on to colored plaster, painted fiberglass, or exposed aggregate surfaces. Approximately 19000 gallons. (Note, things that remove hardness from the water below 150 ppm will cause your plaster to crumble off your pool, often adding other chemicals that will stain and discolor it, … the best method, is an annual drain and refill of your pool, and this has been the best method for the last 30 years. For oily stains at the waterline, or a bathtub ring from winterization water levels, use an enzyme product like Pool Perfect to consume oils, fats and other greasy pollutants that enter the water. 8. A weak, cowardly algae, it hides in the places that our cleaning equipment and sanitizers don’t always reach effectively. The Sapphire Stuff by Jack’s Magic is another fantastic sequestering agent. Severe and set-in stains may require an acid wash. Marbelite has a grainy marble texture and can be unpredictable in it’s outcome. We recently had to empty it because several small pieces of the pour in place rubber flooring started quickly breaking down and falling into the pool. Once again, my TIP of having correct water balance is mentioned. Mustard algae and most yellow/brown algae will like the bottom of the pool. The fastest way to get rid of these stains is to apply chlorine straight onto the discoloration. Share. From http://www.swimmingpoolsteve.com/pages/pools.html - Learn what can cause your swimming pool plaster to have brown stains. It also has roots, which can penetrate a pool’s plaster, fiberglass or vinyl surfaces. With staining, patience is a virtue. Over time however, Diamond Brite plaster will become stained from the chemicals used in your pool. Unlike algae, iron deposits resist scrubbing and take a … Usually yellow to green. The treatment will also depend on the … ... Take some Vitamin C (ascorbic acid) tablets and hold them on the stain and see if they lighten or go away. WEBSITE: http://www.swimmingpoollearning.com/ In this video I will go over the four main type of staining you will see in a swimming pool. Yellow stains on plaster wall patches Ask Question Asked 6 years, 6 months ago Active 3 years, 1 month ago Viewed 14k times 2 I live in an old 1910s house and it turns out my walls aren't drywall. Shades of yellow can be a sign of excessive iron. All stains are not cleaned in the same way, for the simple reason that they do not all have the same origin. Discoloration caused by scaling or algae might be removed by brushing, but most stains will require harsher methods. These types of stains can be cleaned with good old fashion elbow grease using a combination of a PoolStone and pool shock. When debris is left on the bottom of the pool they form organic stains. ... For colored plaster, painted fiberglass, exposed aggregate pools you will need to dissolve Pool Stain Treat® in a bucket of water first before pouring it into the swimming pool to prevent discoloration. Blue-green stains on your pool surface are clear sign that you have a copper problem. Minerals can come out of solution in hard water, and metals can enter from fill water that is high in metals, or from copper pipes or a pool heater exchanger – when water balance is not correct. SIMPLE TO APPLY- Simply pour Vanish Pool Stain Remover into the pool around the stained area and watch the stains disappear. Heavy metal is the enemy, and I am not referring to Iron Maiden or Slayer. It works especially well on well water, is not affected by pH or temperature, and is All Natural. Just like black spot, yellow algae is … Most pool stains occur when excess organic and/or metallic compounds and improperly balanced pool water meet. Remove Stains From a Plaster Swimming Pool. Works on fiberglass and vinyl pool surfaces. Organic stains - From Algae growth, leaf stains or dirt washed into the pool and left longer than a week. It is one of the strongest products available for sequestering metals. Scrub with a … I’ve tried the pool brush and water but it’s not coming off easily. What would you recommend moving forward? Sequestering agents, commonly called Stain & Scale chemicals, can help keep minerals and metals in solution, locked up tightly at the molecular level, so they won’t precipitate, mix with other particles, and then attach to your pool … A common misconception is that it’s the pool builder’s fault for installing rusty rebar. Acid-washing plaster near the end of its useful life can rub away and expose the gunite beneath. Often difficult to remove they quickly become a nightmare. Also, salt will rarely leave a white stain in your pool. This can lead to discoloration. The pool stain can be varying colors but most commonly is brown when it develops on white plaster steps and the stain is dark grey, light grey or rust colored when it develops on colored plaster steps. 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.