It is good practice to Oxy-Shock dose your pool or spa on a weekly basis or after heavy use.
Pre-dissolve the required amount of Oxy-Shock in a clean plastic bucket filled with warm water. Stir the solution until the granules are fully dissolved.
Ensure that your spa circulation pump is turned on before slowly puring the solution directly onto the spa water surface.
Continue to run your spa circulation pump for at least 15 minutes.
Ensure your spa is sanitised at all times and test before every use.
How much to add? (As a general guide, a heaped teaspoon holds 8g of granules)