Ma Boutique Chimique

Mustard Algae

What is it?

Mustard algae is a chlorine-resistant form of green algae that often resembles dirt or sand on bottom or sides of pool. It contains compounds that act as a defense mechanism against the oxidation efforts of sanitizers, helping it survive even in highly chlorinated conditions. This factor can even create a large chlorine demand in certain situations. Mustard algae can be brushed away very easily, but returns quickly.

Solutions

How to kill mustard algae:

Use Erase® as it kills all types of swimming pool algae.

How to prevent algae growth in 5 steps:

Maintain a sanitizer residual of 1-3 ppm.
Do an initial and weekly application of a preventative algaecide with Banish®.
Use Smart Shock to oxydize routinely.
Make sure there is adequate circulation and filtration.
Brushing surfaces is vital.