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. It is not recommended to swim with flocculent in your pool as it will reduce its effectiveness.
Swimmers inside a pool that has too much algaecide will witness an onset of eye and skin irritations. Other water chemistry imbalances can lead to eye irritation as well, including too much chlorine or unstable pH and alkalinity levels.
Regular algaecides do not contain copper, but rather quaternary ammonium compounds, also known as "quats" or "polyquats." These compounds are safe for immediate swimming. Use of too much algaecide may cause slight eye or skin irritation, so always be sure to follow the manufacturer's instructions.
Harmful if swallowed or absorbed through the skin. Avoid breathing vapor or spray mist. Avoid contact with skin, eyes or clothing. Prolonged or frequently repeated skin contact can cause allergic reaction in some individuals.
Algaecide should be added to your pool water on a weekly basis. Preventing algae is the key to fun in your pool. Algaecides act as a backup to your normal sanitization program and prevent algae from starting and growing in the pool. Algaecide should be added after every shock treatment.
When closing and winterizing your pool, it is important to remember to balance your pool water's chemistry prior to closing and don't forget the algaecide. Algaecide is simple and effective with one quart of winter algaecide typically enough to treat 20,000 gallons of water all winter long.
Let the water circulate for at least two hours.
Circulate the water for about 2 hours to ensure the flocculant is fully mixed in, then shut off your pump and let it sit overnight. During this time, the chemical will start to bind the particles together and settle them to the bottom of the pool.
ADD POOL CLARIFIER
The change in your pool water colour means that you have successfully eliminated the algae and can now clean it out of your pool. If your water is still green, wait another 24 hours and redo the steps from Days 1 and 2. Now is the time to add Pool Clarifier and let it circulate for 12 hours.
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.
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.
There are a few different types of algaecides that contain various chemicals to suppress and fight off algae. Many of them include copper or copper sulfate. It's this copper that oxidizes in the water. And when copper oxidizes it turns a green color causing your pool to look green.
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 recommended to wait at least 20 minutes to an hour after adding water balancing chemicals. You should wait 2-4 hours (or one full cycle through the filter) to swim from the moment you use calcium chloride in your pool. It is safe to swim once your chlorine levels are around 5 ppm or after 24 hours.
Add Algaecide After Shocking
Wait for the pH to fall to a safe level for swimming (3 ppm or below) and then add a product such as Pool Time Algicide + Clarifier in the amount recommended in the product instructions. Pour this incrementally into the water as you walk around the pool.
Pour the algaecide dose into the water, depositing it in several areas around the pool. Your swimming pool pump should be running at this time to help circulate the algaecide. Wait about 30 minutes before allowing anyone to swim after the algaecide application.
Algaecide should be used after each shock treatment, so it has a better chance to support your chlorine as it works its magic. Be sure to shock your pool first, then when the chlorine levels of your pool return to normal, add the correct amount of algaecide to several places around your pool while your pump is running.
In a pool where algae is present, algaecides work in conjunction with chlorine to kill the algae cells. The algaecide causes the cells of the algae to burst, which destroys the plant. Different algaecides are used for different types of algae.
You can get rid of algae quickly by vacuuming and brushing your pool, balancing your pool's water chemistry, and then shocking and filtering your pool water. Just be thorough as you clean your pool surfaces. If you leave behind even a small number of algae spores, it won't be long before they regrow and bloom again.
So unless you're dealing with mustard algae or black algae, leave the algaecide on the shelf and get ready to shock the heck out of your pool. But when dealing with regular ol' green pool algae, chlorine is your best bet to kill it dead.
Algaecides. While algaecides are pretty shelf-stable and will be viable for up to five years, we only recommend getting enough to cover you for a season and a little bit for the off season.
One final note on algaecide: Contact algaecide is different from liquid algaecide. Many liquid algaecides don't work in cold water, and we don't recommend using them even in the warm months.
Closing a pool that is green with algae, or dirty with debris or with water that is unbalanced, leads to heavy staining and saturation of the water with dead algae cells, which makes it easier for subsequent generations to grow.
Shock and Chlorinate Your Pool
Shocking kills any bacteria that might linger in your pool during the winter. We recommend shocking a few days before you close the pool. If that is not possible, make sure to shock the pool the night before you close it for winter.
Typically, a minimum of 24 hours up to a couple of days depending on the type of shock and amount used. After Adding an Algaecide: Some algaecides are perfectly safe to swim within minutes of application while others require longer wait times. Read the manufacturers label for specific time guidelines.