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What are the main algae types? And how can we spot them?
Algae are microscopic plants that require nutrients to exist. Many of these nutrients are found in high concentrations in and around our pools. They are not harmful to humans however they can be dangerous to pets as well as being unsightly. Algae is one of the most common problems in swimming pools. It will vary in colour and size and will be seen either in suspension in the water or attached pool surfaces. Prior to adding chemicals we need to understand the type of algae we are dealing with. The three most common forms of algae in swimming pools are: Green Algae - It will be either green or blue-green in colour, and can be seen in suspension and clinging to the pool surfaces. Mustard Algae - Yellow in colour and can be seen in suspension in the water or clinging to pool surfaces. Due to its microscopic particles Mustard Algae can easily pass through filter media and therefore requires a clarifier to bind these particles so that they may be easily removed. Black Spot Algae - Black in colour and clings to pool surfaces. Black Spot Algae can be one of the most difficult algae issues to solve. The key to dealing with this problem is to act quickly. The spots can rapidly multiply making treatment more difficult as the spots become harder to remove.
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