Staining can be on the walls, floors, or steps of the pool surface. There are two main types of stains which are caused from either metals or organics.
Metal Staining or Discoloration of Water From Metals
Metal staining can range in color from: blue, green, purple or black (Copper), rusty, brown, or greenish/brown (Iron).
Metals can enter the pool water a variety of ways, however the most common are:
Source Water- Well water is usually high with mineral content and municipality water can have up to 1.3ppm of metals in the water that are allowed by EPA standards
Equipment- A common source is copper that is added to the pool water from heaters that have been corroded over time due to fluctuations of pH and alkalinity
Metals can also cause discoloration of the water if the metals have come out of solution. The best way to distinguish a metal stain from an organic stain is to take a vitamin C tablet and hold it for a few minutes on the stain. If the stain is removed or lightened, then the stain is caused from metals.
To remove metal staining or discoloration of water caused from metals we recommend using: Stainfree (citric acid) or Stainfree Extra Strength (ascorbic acid) and METALfree.
Stainfree is a less expensive alternative to ascorbic acid. This formula is 100% citric acid which is an all natural way to eliminate stains
Stainfree Extra Strength is 100% ascorbic acid which is a premium stain fighter! It is the industry's leading ion-exchange stain remover. It's an all natural way to eliminate stains and is compatible with all sanitizing systems
METALfree is a phosphate free formula that changes the physical characteristics of the metals so they repel one another to prevent staining and discoloration of the water. This formula is compatible with all sanitizing systems
Organic staining is usually a greenish brown color which is caused from things such as leaves, dead algae, pollen, etc. To remove organic staining we suggest using Pool First Aid
Pool First Aid combines a powerful broad spectrum natural enzyme formula with our organic clarifier to fix pool problems quickly.
Along with Pool First Aid, using Purge will help remove organic build up from the internal plumbing.
Purge attacks the root cause of most pool maintenance problems... the build-up of organic waste contamination. Organic contaminants like oils, lotions, sunscreen, cosmetics, hair products, and sweat are the underlying root cause of many pool issues. High organic loads will cause, clogged filters, foaming and nasty waterline rings. These contaminants collect and build-up in your pool circulation system and filter. By purging the pool of this organic build-up, the symptoms of high organic loading will be eliminated. Purge cleans where you cannot!
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