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What is Algae?

By Christi - Updated On: 04/25/19

Al*ga (plural noun: algae): A simple nonflowering plant of a large group that includes the seaweeds and many single-celled forms. Algae contain chlorophyll but lack true steam, roots, leaves, and vascular tissue.

Types of Swimming Pool Algae

There are three types of algae that like to form and create a nice home in your swimming pool: Green algae, Black algae, and Mustard algae.

Green algae can be many different shades of green from dark green, blue green, even a yellow green. Green algae is the most common type of swimming pool algae. It can float freely or cling to walls and steps. If green algae is left untreated it could clog and damage the filter as well as damage pool surfaces.

Black algae is a dark blue green color and they find their home in the cracks and crevices of pool surfaces. They have deep, strong roots and if their roots aren't killed properly and fully they can easily come back. This type of algae can be difficult to get rid of.

Mustard algae, also referred to as yellow algae, is yellow in color and can be mistaken as dirt or sand. It usually likes to cling to the wall and in the shady spots of the pool. Mustard algae can be difficult to get rid of because it is resistant to normal levels of chlorine.

How to Prevent Algae in Your Swimming Pool

Think Ahead!  Preventing algae from taking a hold of your swimming pool is simple enough. You just need to make sure you're keeping up with your weekly pool services. On a weekly basis you should make sure your chemicals are properly balanced, your vacuum any dirt up, net off any leaves, and scrub the walls with a brush.

No one wants to swim in a pool where algae has begun to grow.  It can harbor harmful bacteria that can make us sick. It takes time, work, effort, and money to get rid of algae, so be sure to take care of your pools needs to prevent algae growth!

Filed Under:

Tips, General, Maintaining