Activator D is a chlorine-free monthly pool treatment that kills algae at the roots and keeps your pool crystal clear. It comes in two bottles, a powder and a liquid, totalling 850g. One pack treats a 50,000 litre pool for one month.

When using chlorine based products and it rains, the chlorine washes out and the algae comes straight back. Whereas, Activator D kills algae at the roots, which means it doesn't keep coming back. Your pool stays clear through storms, heat, and heavy use, without any chlorine.

Yes. Activator D is non-toxic, non-corrosive, and chlorine-free. No burning eyes. No itchy skin. Swimwear lasts longer too.

One pack lasts one month for a 50,000 litre pool. For a 25,000 litre pool, use half. Activator D tends to last longer in fibreglass pools.

First, get your chlorine levels to zero. Then follow the standard application steps. Check your pH and alkalinity — pH should be between 6.8 and 7.2, and total alkalinity between 80 and 100 ppm for marbelite pools, or 80 to 120 ppm for fibreglass. Balance these before dosing. Once your water is balanced, backwash your pool for 3 to 5 minutes until the water runs clear, then rinse the filter for 1 minute. Disconnect the pool cleaner hose from the weir, set the valve to filter (not circulate/bypass), and start the pump. Pour both bottles into the weir, allow the product to mix in, then reconnect the hose and resume your normal cycles.

Stop adding chlorine; take any floaters out the water and allow the existing chlorine to evaporate naturally in the sun. Once levels have dropped to zero, you are ready to apply Activator D.

Check three things before you dose. pH should be between 6.8 and 7.2. Alkalinity should be between 80 and 120 ppm. Chlorine and salt levels must be at 0 ppm. If alkalinity is too low, add an alkalinity boosting product before dosing. You will notice a much bigger improvement in water clarity.

For a neglected or very green pool, you can use a double dose to start. This will kill the algae and clear the water within a few days. Black algae takes a few weeks to fully disappear. Brush the walls regularly to break up its surface and let Activator D reach the roots.

Yes, borehole water generally presents no problem but if it should – depending on trace metals in the water – dose the pool with acid. When adding acid to a pool, mix with water in a bucket and pour into pool with multiport on bypass.

You can add Activator D to the water while people are swimming. It is non-toxic, non-corrosive, and safe for immediate contact with skin.

Activator D works in marbelite and fibreglass pools, as well as plastic splash pools and jacuzzis. Use a tablespoon from each bottle for jacuzzis, and a small proportion for splash pools.

Activator D is not recommended for salt chlorinated pools. Activator D does not kill E. coli (found in human faeces). For extra protection against bacteria, especially with extensive pool use such as hotels, schools and public swimming pools: • Add 1 cup of chlorine into the weir with the pump running on filter, starting 3 days after adding Activator D. Follow up once a week. Do not sprinkle chlorine directly into pool water - it works through the filters and will not register in pool water.

You can add a small amount of chlorine via the weir for extra bacteria protection, especially if your pool gets heavy use. Add 1 cup into the weir with the pump running on filter, starting 3 days after adding Activator D, then follow up once a week. Do not sprinkle chlorine directly into the pool water.

Activator D does not kill E. coli. For pools that get heavy use, such as those shared with large groups, a weekly chlorine top-up via the weir is recommended for extra protection. For a standard residential pool with normal family use, this is not a concern.

No. Activator D is non-toxic and environmentally friendly. Pool runoff water will not damage plants.

No. Activator D is not recommended for use near aquatic life.

Yes. Activator D is non-toxic, non-corrosive, and chlorine-free. It is designed to be safe for swimmers, pool surfaces, and the environment.

Do not add more Activator D. If the pool was dosed correctly, the problem lies elsewhere. Most commonly, low alkalinity. Check your total alkalinity and adjust if needed. Once alkalinity is corrected, you should see the water clear quickly.

This means the pool was overdosed. Activator D sometimes lasts longer than a month. Wait until the sparkle fades before adding more. To correct dark blue water, mix acid with water in a bucket and add to the pool with the multiport on bypass.

Blue stains usually mean the filter sand needs attention. Renew the sand and do an open backwash.

Brown stains are typically from leaves. Balance pH and alkalinity, then add Activator D.

Black stains are usually caused by chlorine being thrown directly into the pool. Do not try to scrape them off — the stain will go on its own. Balance pH and alkalinity and add Activator D.

The most common cause is low total alkalinity. When alkalinity is too low, Activator D cannot work at full efficiency. Add an alkalinity increaser and you should notice the water clear quickly.