Algae growing over larger sections of the pool, or suspended in the water will require a strong dose of chlorine pool shock, or granular chlorine, to kill the algae.
Different algaecides are used for different types of algae. For example, HTH Algae Guard10 is more effective against green algae. HTH Super Algae Guard can be used for green, black or yellow algae.
Algaecides are used to kill phytoplankton and are applied to prevent or reduce large blooms. One common algaecide is copper sulfate which is highly soluble in water. Copper sulfate is dissolved in water and then injected into or sprayed onto surface waters where it will immediately cause algae to senesce.
Use the biguanide algaecide for your pool, measuring 16 ounces for every 10,000 gallons of water.
Clorox is a trusted name in clean. And their Pool&Spa Green Algae Eliminator delivers. This particular formula is non-foaming and suitable for all types of pools, whether they be chlorine or salt. This chemical works best on green algae, which is by far the most common.
The presence of too much algaecide can lead to a foamy pool water. Small bubbles will begin to be produced as the water is pushed through the return jet and back into the pool. Do not confuse these bubbles and foam with another common problem, which is air in your pool lines.
Results in 24 Hours
Non-foaming formula works fast to kill pool algae.
Pools can immediately turn green after shocking when they have metals like copper in the water. These metals oxidise when exposed to high levels of chlorine which makes the pool water turn green. Adding a metal control product such as Zodiac Metal Remover will help to restore the pool water.
Add a dose of algaecide, bring your chlorine level high by shocking, and run the filter continuously until the problem clears. The next day you should vacuum up the dead algae and backwash your filter. Algae thrives in hot weather and in pools with low or no chlorine.
Copper-based algaecide is effective in killing different types of algae in your swimming pool because it lasts longer in pool water. The common types of algae that this chemical can kill include green pool algae, mustard algae, pink pool algae, and black pool algae.
YELLOW OUT® dissolves immediately, is neither an algaecide nor an herbicide and as such has no poisons in it. However, because of the concentration of EPA registered chlorine in your water after treatment, we recommend you stay out of your pool as long as you normally do after you shock or super-chlorinate your pool.
If you add algaecide, keep in mind that some algaecide contains copper, which can actually make a pool cloudy. If the cloudiness persists 24 hours after shocking, then it's possible that you used a poor-quality chlorine shock.
Add pool algaecide at a rate of 12 ounces per 5,000 gallons of pool water.
But if you add algaecide to your pool when there's no algae for it to kill, it doesn't have anything to do or anywhere to go. It will thicken the water, and the slightest agitation of the water will create pool foam. This is true of using algaecide anytime there's no algae present in the water.
Our Liquid Algaecides are patented formulas that not only work as preventatives but as a pool clarifiers that inhibit algae growth of all types. When included as part of your regular pool maintenance program, Liquid Algaecide acts as a form of insurance against the presence of algae and it's cost associated remedies.
How Algaecide Works. Many algaecides are copper-based—either made of copper sulfate or copper chelates, which are chemical compounds with a metal as the central atom. A few registered algaecides instead use the herbicide endothall or sodium carbonate peroxyhydrate.
While shocking and adding algaecide is effective in getting rid of algae, it should not be done together. This is because when you mix chlorine and algaecide together, it renders both of them useless. Hence, you should first shock the pool and wait for the chlorine levels to fall below 5 PPM.
It is best to wait 30 minutes after adding it to your pool. We recommend waiting at least 15 minutes to swim after adding algaecide to your swimming pool. Most algaecides are perfectly safe to swim with.
Copper-sulfate is a highly-effective algae killer, making algaecides that contain the chemical very powerful. Unfortunately, some pools tend to have high copper levels, and adding more copper to the water in such cases can be a bad idea.