How to get rid of mustard algae?

What is mustard seaweed?

The first specificity of this algae is its yellow color.
Mustard algae also differs from other algae (green, pink, black) in its texture, as it is not sticky. It takes the form of dust that settles on the walls and bottom of the pool.

Highly volatile, mustard algae flies away as soon as swimmers or the cleaning robot approach. It will then settle back into the pool as soon as calm returns. It is therefore urgent to clean your pool to solve the problem as quickly as possible.

Where does mustard seaweed come from?

Mustard algae germs originate from southern countries and arrive in France with the wind or rain. Obviously, regions most exposed to wind are more subject to this type of pollution.

Mustard algae doesn't just invade your pool, it usually settles in your geographical area.

How to recognize mustard algae in your swimming pool?

Difficult to spot because it is volatile, mustard algae will be visible in the water when the pool is calm. Its main characteristics are as follows:

– The “mustard” algae is yellow in color,
– It comes in powder form,
– It disperses when there are turbulences in the pool (swimmers, passage of the cleaning broom or robot which cannot suck it up).

Conventional anti-algae treatments are not effective enough to eradicate mustard algae.

How do I effectively remove mustard algae from my pool?

It is essential to use a specifically tailored treatment to permanently eradicate mustard algae from your pool water. A conventional chlorine or anti-algae treatment will not produce effective results.

To optimize the action of the anti-mustard algae treatment, the following steps should be followed:

– Adjust the pH value so that it is between 7 and 7.4.
– Clean the filter bag before starting treatment.
– Clean the pool: brush the bottom and walls to remove all the algae suspended in the pool. Don’t forget to brush the skimmers, spotlights and other parts to be sealed.
– Mustard algae is a germ that moves with the wind, so it is important to thoroughly clean all equipment that has come into contact with the pool water (toys, inflatables, roller shutters and even shelters, etc.).
– Pour the treatment into the pool, respecting the dosage mentioned on the product label, once bath time is over.
– Check that the filtration is working properly.
– The action of the products on the problem is generally immediate, like JD Anti-algae Mustard swimming pool JD Pro Anti-algae Mustard
– To support the effectiveness of the treatment and to be certain of definitively eradicating the mustard algae, it is recommended to carry out shock oxidation (shock chlorination or hydrogen peroxide) immediately afterwards.
– As soon as the treatment is carried out, it is important to clean the filter bag as well as the robot bag or bag.

Tips: Mustard algae treatments can also be used as a preventative measure as part of your pool maintenance , in addition to a chlorine treatment. Owners whose pools are more exposed to southerly winds can use this treatment twice a season to prevent mustard algae buildup.