Do you balance pH before shocking pool?

Before you add shock treatment, you need to test your pool water and balance its levels. The pH level should be between 7.2 and 7.6, with total alkalinity being between 80 and 120 ppm. Pool water testing is easy to do using test strips or liquid test kits.
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Do I Adjust pH or shock first?

That said, Absolutely pH first. And once it's good, don't bother testing pH again until the shock process is complete and FC has dropped below 10. High chlorine reacts with the reagent and shifts the color, so it won't be accurate.
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Do you balance pool before shocking?

Equally important is to balance the water first, before shocking a pool. Minerals, metals and dirt often mix and deposit as stains or scale during shocking, when pool water is not balanced. In addition, chlorine has much more power or efficacy at lower pH levels, so you can use less.
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Can you add pool shock and pH up at the same time?

Never add chemicals at the same time, whether you're balancing the water, shocking the pool, or adding a specialty chemical. For most water balance changes, the pump needs to run on the high setting for at least four hours before you can add another chemical or retest the water.
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Do I Adjust pH or chlorine first?

Chemicals that affect the levels of pH and alkalinity need to be added to the swimming pool first. Getting the pH and total alkalinity sorted out will allow for the addition of further chemicals that affect the hardness and cleanliness of the water.
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Adjusting Ph and Alkalinity in your pool



What does Shocking a pool do to 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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Should I add shock or chlorine first?

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.
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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 do you do after you shock your pool?

Answer: After shocking the pool, it will need filtration and circulation. Run the pump as much as possible. Keep the filter clean (daily) until the water runs clear. Be sure to brush the pool often during this process as above-ground pools do not have drains at the bottom.
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What are the steps to shock a pool?

How do I shock my pool?
  1. Check that the pH levels in your pool are balanced.
  2. Prepare shock ahead of time in a 5-gallon bucket of pool water and stir.
  3. Ensure the pool pump is running. Pour the mixture from the bucket into the water around the edges of the pool.
  4. Let the pump run for about 6 hours or more and test the water.
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How long should you run filter after shocking pool?

While shocking your pool will help kill any germs any algae, it won't actually get rid of them; for that, you need your filter. So be sure to run your pool filter for at least 24 hours.
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Does shock work with low pH?

Remember that a Low pH level is crucial to successfully shocking a pool. At a pH level of 8.0, over half of your shock is ineffective and wasted. At a pH level of 7.2 however, over 90% of your shock will become active algae and bacteria killers.
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Does liquid shock raise pH?

Using Liquid shock or liquid bleach regularly will increase your pH so make sure you keep an eye on your pH and alkalinity levels.
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Does chlorine increase pH?

Using liquid chlorine raises the pH of the water.

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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What chemicals should I balance first in my pool?

Total Alkalinity (TA) is the first thing you should balance in your pool water. TA refers to the amount of alkaline material in the water. And since alkaline is a pH stabilizer, the number of alkaline substances in water will affect the pH balance. The ideal Total Alkalinity range for pool water is 80 – 120 ppm.
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Does non chlorine shock raise or lower pH?

Chlorinated shocks have a pH closer to household cleaners. Because chlorine-free shocks have a lower pH than their chlorinated counterparts, swimming can resume just 15 minutes after the shock it added. It also will not bleach out pool liners, paint, or your swim trunks.
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How long after I shock the pool can I add chlorine?

You should wait one hour per pound of shock product added, and then test the water to confirm the pH and chlorine are in the proper range before letting anyone enter the pool. As a reminder, you want your pH to be between 7.2 and 7.8ppm and your free available chlorine to be 1-4ppm for safe swimming.
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Will pH go down after shocking pool?

Pool shock.

Shocking your pool is important, but if you're using cal-hypo (calcium hypochlorite), it can raise your pool's pH levels. Don't stop shocking your pool, but do test all your chemistry levels consistently, especially after shocking.
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How do I balance the pH level in my pool?

The basics include:
  1. Always take proper precautions and wear proper Personal Protective Equipment when balancing pH.
  2. Add soda ash if your pool's pH level is below 7.2. Add Muriatic Acid or Sodium Bisulfate if it's above 7.8.
  3. Continue to add appropriate product until your water has a pH level of 7.2-7.8 (ideally 7.4-7.6).
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Does shock raise alkalinity?

Causes of Rising Alkalinity

It's also not uncommon for pool owners to go a bit overboard when shocking their pool, and since chlorine-based pool shock is a high-alkaline substance, it will also naturally raise your pool alkalinity.
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When should you put shock in your pool?

The ideal time to shock your pool is in the evening after all swimming is complete. In the evening because the sun will not be boiling the chlorine out of your pool, and after everyone is done swimming because shocking is going to bring the chlorine level up to a level that may be irritating to skin and eyes.
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What's the difference between shock and chlorine?

Chlorine is a sanitizer, and (unless you use Baquacil products) is necessary for maintaining a clear and healthy pool. Shock is chlorine, in a high dose, meant to shock your pool and raise the chlorine level quickly.
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Can I add acid and shock 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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