Why does my pool need acid every week?

Why do Swimming Pools need acid? The reason we add acid to swimming pools is reduce the pH (Potential Hydrogen) of the water. The pH is always slowly rising due to either chlorine being added manually or produced through salt chlorination.
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Why do I keep having to add acid to pool?

The main reason that muriatic acid needs to be added into pool water is because it can help reduce pH levels that have become too high. High pH levels are known to lead to the development of scale.
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How often should you put acid in pool?

If you regularly clean your pool and keep it in good shape, chances are you will only need to acid wash your swimming pool every 5-7 years. Because acid washing uses harsh chemicals, it is not recommended to get your pool acid washed more frequently than that, as the harsh chemical used can damage your pool's surface.
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Why does my pool pH keep going down?

The most common cause of a consistently low pH level in pools is using chlorine tablets or stabilized forms of chlorine. These have a pH level of around 3. Acidic rainfall, heavy leaf debris, and dirt/mulch in the pool can also lower the pH level.
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How often can I add muriatic acid?

After a few hours, test the pH level again. If the pH levels are still too high, you may add a little more muriatic acid. Continue to test every 4 hours until the levels are at optimum range (7.2-7.8).
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Do I Need To Add Acid After I Add Chlorine? No!



How often should I add muriatic acid to my swimming pool?

We recommend adding Acid weekly! Adding a little and often is better for your water and can actually save you money overtime. Large doses over longer periods of time take a larger portion of your 'Total alkalinity' away.
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Can you put too much muriatic acid in pool?

If you do add too much muriatic acid, your pH levels can dip dangerously low, and your pool water can cause rashes and eye irritation. Low levels of pH can also damage metals in your pool like ladders, railings, screws, bolts, and other important equipment.
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Does shock raise pH?

It will slightly raise your pH, so make sure you adjust pH while using it. As the name implies, it will also raise your calcium hardness levels in your pool slightly. It is sold in granular or in pucks/tablets. A close relative of calcium hypochlorite is sodium hypochlorite, commonly known as bleach.
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Does adding chlorine lower pH?

High chlorine levels decrease the pH of your pool's water, making it more acidic. The more acidic the water, the higher the likelihood of corrosion. This corrosion can affect metal piping, equipment, and the surface of your pool (tiles, liners, concrete, etc.).
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Does adding chlorine raise pH?

Using liquid chlorine raises the pH of the water.

Liquid chlorine does not raise pH. When added to water, liquid chlorine (which has a pH of 13) makes HOCl (hypochlorous acid – the killing form of chlorine) and NaOH (sodium hydroxide), which raises pH.
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Can I add acid and chlorine to my pool at the same time?

Despite being chlorinating agents, they are incompatible. Do not add at the same time or mix muriatic acid and chlorine. Such interaction produces a toxic gas that is dangerous to health even in small amounts. A good rule of thumb is to never mix pool chemicals with each other.
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Will muriatic acid clear up a cloudy pool?

High total alkalinity: This causes pH and calcium scaling, which is related to cloudy pool water. If this happens, you need to raise your pH levels to restore balance. To do this you need to dilute and add muriatic acid to your pool.
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How long does muriatic acid last?

Sodium Bisulfate and muriatic acid could have a 5 year shelf life, however pH decreasers are acids, and a larger shelf life concern about pH decreasers is the strength of the container. Over time, thin plastic bottles or packaging can break down from contact with acids.
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Does Shocking a pool lower alkalinity?

Another cause for high alkalinity can be when you shock the pool. While this is performed to quickly rid the pool of pollutants, chlorine-based pool shock is highly alkaline, and can raise the water's total alkalinity level in the process.
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What happens if pH is too high in pool?

Water with a pH that's too high also can cause skin rashes, cloudy water and scaling on pool equipment. Over time, scaling inside pipes can build up, restricting water flow and putting a strain on your pool circulation system that can lead to costly repairs.
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What does baking soda do for a pool?

Baking soda, also known as sodium bicarbonate is naturally alkaline, with a pH of 8. When you add baking soda to your pool water, you will raise both the pH and the alkalinity, improving stability and clarity. Many commercial pool products for raising alkalinity utilize baking soda as their main active ingredient.
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Can you over chlorinate a pool?

Risks of Over-Chlorination. While slightly higher-than-normal levels of chlorine in your pool are harmless, exposure to an over-chlorinated pool can have adverse effects on your health and well-being. Excess chlorine can alter the pH level of the water in the pool, making it more acidic.
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How do you stabilize pH in a pool?

The ideal pH level for pool water is 7.4 – 7.6.

In that case, add baking soda to increase alkalinity and stabilize the pH. To decrease pH, use a pH decreaser such as sodium bisulphate or muriatic acid.
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Does Shocking a pool with liquid chlorine raise pH?

The fact is that initially or upon addition liquid chlorine raises pH because sodium hydroxide (lye) is made. You can see that hypochlorous acid (HOCl the killing form of chlorine) is made, sodium ions (Na+) and hydroxide (OH–) are made. The hydroxide raises the pH of the pool water.
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Should I shock my pool every week?

How Often Should I Shock My Pool? Shocking your pool regularly will help to keep the water clean and free of contaminants. You should aim to shock your pool about once a week, with the additional shock after heavy use. Some tell-tale signs that your pool needs to be shocked are cloudy, foamy, green, or odourous water.
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Can you put too much shock in a pool?

Can you put too much shock in a pool? SKIMMER NOTES: It's unlikely but it could happen. It would take a lot of shock to really make the water unsafe for swimming. The best way to make sure you're safe to swim is to test your pool water and make sure free chlorine levels are between 1-4ppm for healthy swimming.
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Should I backwash after shocking pool?

Steps for Preventing Algae

If your pool is used frequently, shock it at least once a week. Clean or backwash your filter regularly. Run your pool pump for at least 10 hours per day to completely circulate the water. Keep your phosphate levels below 100 ppb (parts per billion).
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How long should you run pool pump after adding acid?

You want to make sure the pump is running for at least 1/2 hour, preferably even an hour, during and right after after adding most chemicals. Running the pump longer than 1/2 hour is just fine, particularly if you would normally have it running anyway.
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How long should I wait to swim after adding muriatic acid?

Muriatic acid can create a hot spot of acid in the water that could potentially burn or irritate your skin. It is best to wait 30 minutes after adding it to your pool.
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Should pump be on when adding muriatic acid to pool?

Turn the pool on

By having the pump on it will aerate the pool, slightly increasing pH and aiding alkalinity. Therefore, adding muriatic acid to the pool while the pump is running will reduce the likelihood of large drops in pH.
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