You should never add chlorine and muriatic acid at the same time. The muriatic acid will react with the chlorine in your pool and create a deadly gas called hydrochloric acid.

How long after shocking pool Can I add muriatic acid?

It is always best to test first! 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. We recommend waiting at least 15 minutes to swim after adding algaecide to your swimming pool.

Can I add pool shock and muriatic acid at the same time?

Chlorine & Muriatic Acid

Perhaps most important note of all, never add chlorine and muriatic acid together in the pool. This creates a dangerous toxic gas that can have severe health consequences if inhaled.

What happens when you mix shock and muriatic acid?

Sodium hypochlorite or calcium hypochlorite is basically chlorine gas dissolved into a watery alkaline solution. If you destroy the alkalinity by adding acid, you destroy the liquid's ability to keep the chlorine gas in solution, and it is all suddenly released as an inhaleable gas.

Can you add pool chemicals 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.

Do I Need To Add Acid After I Add Chlorine? No!

15 related questions found

When can I test after adding muriatic acid?

Check the pH Levels Again

Now that you've added the muriatic acid to your pool, it's time to check the pH levels again. Keep in mind that this testing should occur only after a few hours have passed.

Can I add pH down after shock?

Yes perfectly normal, as the high chlorine shock level lowers so will the pH and it will return to almost where you were before shocking. Please post your water test results and we can guide you through this process.

How often should I add muriatic acid to my pool?

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).

How much muriatic acid do I add to lower alkalinity?

The main rule to keep in mind is that it takes 25.6 oz. of full-strength muriatic acid (31.45 percent hydrochloric acid) to lower the total alkalinity by 10 ppm in 10,000 gallons.

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.

Why are my pool chemicals not dissolving?

Undissolved Granules

The presence of these granules does not indicate that you have added too much stabilizer -- the product is slow to dissolve, particularly when static. You can speed the process by agitating the granules with a brush so that they circulate in the pool water.

Can I swim 12 hours after shocking pool?

And how long do you have to wait before you can swim? 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.

How long after shocking pool will it clear up?

Give the shock a good 12 to 24 hours to work it's magic. If the algae hasn't cleared up after 24-48 hours, clean and brush the pool and add another shock treatment.

How long should you run filter after shocking pool?

A pool filter should be run for a minimum of 6 hours after shocking a swimming pool. This is to allow the filter to clean the water and give the shock enough time to fully mix with the pool water. Running the filter after shocking for 24 hours to 7 days is necessary if the pool has a large amount of algae.

How long after shocking Can I add pH up?

Most balancing chemicals, such as pH, alkalinity, and calcium hardness, will become incorporated into the water within an hour of adding them, at which time swimming is safe. Shock takes longer to adjust with the pool water, so waiting overnight after shocking before you swim is recommended.

Does pH go up after shocking pool?

frustratedpoolmom. The PH rise is temporary, and as the chlorine is used up the ph will drop back to normal. Disregard high PH readings. We recommend shocking with liquid chlorine - granular products add additional things that you may not want in your pool.

Does pool shock raise or lower pH?

Shocking the pool will lower the pH, whether you use chlorine-based shock (calcium hypochlorite), or the non-chlorine kind (potassium peroxymonosulfate). Rain picks up impurities in the air, raising the rainwater acidity and lowers the pH.

How much muriatic acid can I add at a time?

Usually 2 cups of muriatic acid in a 24 hour period is safe to add to a pool at the one time. Factors determining how much acid to add are how strong the muriatic acid is and the volume of your pool. The stronger the muriatic acid (aka Hydrochloric Acid) is, the less you can add at once.

Will muriatic acid lower hardness in pool?

Try muriatic acid.

If draining and floc don't work, you can add muriatic acid as a last resort. It won't actually reduce the water's calcium hardness, but it will raise the saturation level, which can help bring the water back into balance.

Does muriatic acid raise pH?

Muriatic acid lowers both pH and alkalinity. To raise alkalinity, add sodium bicarbonate (baking soda). This is different from sodium carbonate (soda ash).

Can you add phosphate remover and shock at the same time?

If there is algae, brush it off of the walls and floor. Clean the filter then shock the pool. After that, add the phosphate remover. ... Both clarifier and phosphate remover are non-harsh chemicals, and are safe.

What should be adjusted first alkalinity or pH?

You should test alkalinity first because it will buffer pH. Your reading should be in the range of 80 to 120 parts per million (ppm). If you need to increase the alkalinity, add an increaser.

How long should you wait to test pool water after adding chemicals?

pH, Clarifier, Alkalinity — For these types of water-balancing chemicals, it's suggested that you wait at least 20 minutes before you get into the water. After you shock the pool — As soon as your chlorine levels reach 5 ppm or lower, it's officially safe to swim.