Should I put algaecide in my pool when closing?

Author: Miss Corrine Fahey  |  Last update: Saturday, June 11, 2022

By simply adding algaecide to your water prior to closing, you can prevent algae growth from occurring during the cold, winter months which makes for an easier opening in the spring. You can apply algaecide directly to the pool water and allow the pump to continue to circulate for approximately two to four hours.

What chemicals should I put in my pool when closing?

What chemicals do I need to close my pool?
  1. Chlorine.
  2. Pool Shock.
  3. Soda Ash.
  4. Baking Soda.
  5. Muriatic Acid.
  6. Winter Algaecide.
  7. Pool Antifreeze.
  8. Stain and Scale Prevention.

When should I add algaecide to my pool?

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.

Can you close a pool with algae in it?

If your pool has been green all season you're probably super excited to close it. While it seems like the easiest option – it's not! It's much smarter to close your pool as clean as possible. Algae can grow in water as cold as 50 degrees.

How do you get rid of algae in pool before closing?

How Do I Get Rid of Algae In My Pool FAST?
  1. Vacuum Your Pool Manually. Automatic or robotic pool cleaners aren't well suited for cleaning algae. ...
  2. Brush Your Pool Walls and Floor. ...
  3. Test and Balance the Water. ...
  4. Shock Your Swimming Pool. ...
  5. Filter Out The Pool Algae. ...
  6. Test Your Pool Water Again. ...
  7. Clean Your Pool Filter.

The TRUTH About Using ALGAECIDE In Your POOL | Swim University

How much algaecide does it take to close a pool?

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.

Which algaecide is best?

5 Best Pool Algaecides for Backyard Swim Pools
  • BioGuard Algae All 60. ⭐ Best overall pick for copper-free algaecide. ...
  • Clorox Pool & Spa Algae Eliminator. ...
  • HTH Super Algae Guard 60. ...
  • In the Swim Super Algaecide. ...
  • Clorox Pool & Spa XtraBlue Algaecide.

Should pool be clear before closing?

Cleaning your pool before closing for the winter prevents algae and makes your spring opening even easier. Make sure to thoroughly brush the sides and floor, skim the surface and clean out the skimmer and pump baskets after vacuuming the pool.

What happens if I close my pool is green?

Closing a Pool with Green Water

Because closing a pool when its green is going to give you an even bigger problem in the spring or the next time you open it. When you are experiencing cooler, fall like temperatures, it takes longer for the chlorine and other chemicals to evaporate.

What water temperature does algae stop growing?

Also, check your pump basket more frequently since leaves and pine straw are falling. Chlorine: When water temperatures are 51 degrees and below, you will not need to add chlorine because algae and bacteria stop growing at this temperature.

Should I use shock or algaecide first?

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.

Do you run filter adding algaecide?

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.

What does algaecide do to a pool?

Algaecide will kill the algae and mold affecting your pool water, but it is best used as an algae preventative. While it does not change the pH balance of your pool water, it will keep algae from growing and work with your chlorine sanitizer to keep those levels balanced.

Is winter algaecide different than regular algaecide?

Winter Pool Algaecide is highly effective at preventing all forms of algae. Polymer pool algaecide stays strong all winter providing dependable control of algae growth throughout the winter season. Unique winterizing algaecide is specifically formulated to fight cold weather algae for up to 5 months in a covered pool.

Why is my pool still green after shock and algaecide?

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.

Will baking soda clear a green pool?

Baking Soda and Green, Blue, or Yellow Algae

You'll need to use an algaecide to kill the algae and superchlorinate your pool to clear the water. After this treatment, test your pH and alkalinity and add baking soda to raise alkalinity to at least 100 ppm and pH to between 7.2 and 7.8.

Why does my pool look green but the water is clear?

Pool water turns green because of algae in the water. Algae can grow rapidly, particularly when it's warm like Summer, which is why it can surprise you overnight. This generally comes down to an imbalance or lack of chlorine in the water.

How do you close a pool without draining it?

Lower the water level to just below the mouth of the skimmer. This removes the water from the throat of the skimmer, which could easily sustain damage should water left there freeze. Also remove the water from the plumbing lines using a shop vac. Be sure to plug the empty lines to prevent them from refilling.

Is algae guard the same as algaecide?

The HTH Ultimate Algae Guard is the one that is added every 90 days, it is a copper based algaecide.

Is algaecide better than chlorine?

Chlorine—yep, your typical sanitizer—is much more effective at killing algae than algaecide is. Even if your water gets cloudy and your walls get slimy, chlorine can still kill it. That's because chlorine oxidizes bacteria and single-celled algae, which means they trade electrons.

Why does algae keep coming back in the pool?

During the hotter months of summer, most pools need at least 12 hours of daily filtering, while the sun is shining, to keep chlorine circulating, and to remove small particles that cloud the pool, giving algae some UV protection. Algae will return again to the pool if you are only filtering 8-10 hours per day.

Is it too early to close my pool?

Definitely close your pool before the temperatures fall under 30°F (-1°C) at night. As long as the pump is running, the water is moving, so it won't freeze. But if you lose electricity during a storm and it gets down below freezing, the water will freeze in the pump and filter.

Does algaecide make pool cloudy?

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.

What happens if you put too much algaecide in a pool?

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.

Can algaecide turn pool green?

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.

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