Category Archives: Pool Stains

Swimming pool stain posts, tips, tricks and more

Staining can be the most frustrating problem for any pool owner.  But with a little know-how, you’ll get your pool surface back to clean in no-time.

More Info about Pool Stains

What are Pool Stains?

Pools form stains from metals and organics forming a chemical bond to the surface of your pool. These chemical bonds prevent the stain from being brushed away. Some chemical bonds are much stronger depending on the type of stain and surface.

What are the types of Pool Stains?

Stains, in general, can be classified as organic or metal-based stains.

Organic Stains

Organic simply means that the chemical bonded to the surface contains carbon. These are typically stains left from algae or from leaves sitting on the surface.

Metal-based Stains

Metal-based stains are specific metals and minerals that fall out of the pool water and chemically react to the surface. The most common are iron (brown stains), copper (blue-green), silver (grey stains), and manganese (purple stains).

Why does the type of Pool Surface Matter?

Different surfaces react differently to organic and metal stains. Certain pool surfaces are more reactive than others.

Plaster/Concrete Stains

Plaster and concrete are both porous and very reactive to metals. This can make stains more difficult to remove.

Fiberglass Stains

Fiberglass has a coat of resin, making it extremely smooth and non-porous. This means it is much less reactive to stains. Occasionally fiberglass stains can be removed by tying a towel to brush and pushing it off the surface.

Vinyl Liner Stains

Vinyl is composed of plastic that is woven to form the liner and is the most porous type of surface. This can make organic stains difficult to remove. However, plastic tends to be less reactive to metal-based stains than concrete. This means certain stains are easier to remove.

How do I get rid of Pool Stains?

Stain removal is all about breaking the chemical bond to the surface. This involves using a pool chemical that will force a reaction with the stain to dissolve it. For organic stains, this usually means oxidizing it – similar to how bleaching works. For metal-based stains, a water-soluble compound must be formed from the reaction.

Here’s How No Drain Acid Wash Saves You Money and Water

As the cooler weather approaches and the pool will be used less frequently, this is a good time for many pool owners to remove stains and beautify their pools. There are several ways that this can be done, but we are going to discuss a No Drain Acid Wash for a plaster or exposed aggregate […]

This Simple Fix Will Prevent Most Pool Stains

There is a better way to prevent pool stains – one that does not require purchasing any particular product. It only involves a slight adjustment on how you balance your pool – Jock Hamilton When we are asked to diagnose the reason a pool developed a stain, our first question is always “what’s the alkalinity […]