One of the horrors faced by swimming pool owners is algae growth. Algae is a single-celled plant organism that uses photosynthesis for food and energy production. Once the season starts to warm up, particularly around spring and summer, your amazing swimming pool in Melbourne is at risk for (or may already be growing) algae growth.

As a pool owner, you not only face one, but three types of algae. Just like any other microorganism that cause health problems, you need to figure out exactly what type of algae you are facing in order to come up with a pool maintenance solution that will effectively get rid of the algae and keep it from coming back.

Green Algae

The most common algae that often greet pool owners once they open their pool for the season, or when they come back after a long vacation. Depending on the type of green algae, you may find your water changing in green, yellow-green, or deep emerald in color.  Green algae can also be found floating in patches on your pool surface or clinging against pool walls. Other times, your pool water will remain clear, only with a mild tinge of greenish hue giving you clue that something is amiss. Another sign that green algae is about to bloom is the high amounts of chlorine needed to treat your pool, or the “disappearance” of chlorine during water analysis.

Treatment:  have the water analyzed and balanced, taking special notice on the pH level.  Scrub and clean your pool walls and surfaces, as well as your filter as algae may have already clogged the system. Vacuum and backwash the visible algae immediately then shock the pool, making sure that you raise the chlorine levels up to 30,000 ppm. Add a good dose of algaecide for good measure to treat and eliminate algae.

Black Algae

Black algae, by far, is the most sinister algae known to pool owners and pool maintenance technicians. It shows first as small, black dots on your pool walls before accumulating in number and size to form coin-sized patches on your pool. What makes them so difficult to treat is that they grow deep roots and they grown on top of each other, creating a protective, waxy coating that even the strongest algaecide and shock treatments cannot penetrate.

Treatment: serious brushing and a lot of elbow grease are needed to get the black algae out of the pool and prevent it from coming back. You need the right type of brush or use recommended pumice stone depending on the type of lining that installed on your pool based on the recommendation of swimming pool designers in Melbourne.  Brush or scrub thoroughly so that you destroy the layers of black algae and create a “break” that will enable the chemical to deeply penetrate the algae growth.

Vacuum all the scrubbed algae out, clean and backwash the filter, and perform pool water analysis. Once done, do aggressive or double-dose shocking of the pool water as well as adding double doses of recommended algaecide.

Yellow or Mustard Algae

This is the most misleading type of green algae for pool owners. It comes in yellow-green, or yellowish-brown patches found at the bottom of your pool, closely resembling the color of sand or clay. In order to differentiate whether it is sand or algae, you have to know the texture. If it feels gritty, then it’s sand. If it’s slippery, slimy, and soft, then you know it’s algae.

Treatment: perform pool water analysis and scrub the pool walls aggressively, including underneath the ladders, steps and accessories. Once you are done brushing and scrubbing apply floc according to manufacturer’s instructions and vacuum the algae directly out of the pool. Balance your pool chemistry, shock the pool, and then apply algaecide according to manufacturer’s instructions.

Note: Always make sure that you vacuum the algae directly towards the drain or sewer to avoid recontamination. Keep in mind to clean and treat your filter accordingly, then let it run for 24 hours. Re-test the water if needed.

Prompt action and patience is needed to eliminate algae and keep it from coming back. Avoid this by doing religious pool maintenance as recommended by your pool builder and you will have a clear, soft, healthy pool to enjoy throughout summer.

By | 2017-08-30T14:47:09+00:00 July 20th, 2015|Blog|Comments Off on Different Types of Pool Algae and What To Do With Them