Does Liquid Shock Raise PH?(Guide)

Why Does My Jetted Tub Smell Like Rotten Eggs?

Does Liquid Shock Raise PH?

Hot tub Liquid shock is a condition in which large amounts of chlorine in the hot tub water cause inhaled chlorine gas to accumulate in the lungs, leading to respiratory illness or even death.

Hot tubs use chlorine to kill bacteria and leave behind a residue for those who don’t know.

When someone with Liquid shock inhales chlorine gas, they feel shortness of breath, tightness in the chest, and coughing.

It can also cause potentially fatal lung injury and pulmonary edema.

Hot tub Liquid shock may result from several factors, such as breathing shallowly or heavily while adjusting to the heat or coming into contact with an unbalanced pH level of the water.

Other factors can include wearing a face mask or a tight-fitting cap while adjusting to the heat or swimming too often or too long without removing your clothes.

Does Liquid Shock Raise Ph?

Yes. Liquid shock is a mixture of sodium bicarbonate and citric acid, two agents that can raise the pH level of water. When combined with chlorine, these substances react to form sodium carbonate and hydrochloric acid. This reaction is not reversible, so you cannot undo it.

Liquid shock adjusts the pH of your hot tub’s water and clears your spa’s cloudy water.

Liquid shock reacts with the bicarbonate. Bicarbonate is an alkaline salt that exists naturally in most water sources, meaning it balances the pH of your water.

The citric acid also reacts with the bicarbonate, changing its molecular structure and changing the pH of your water.

This reaction happens in a very short period and at room temperature. If liquid shock is too often used, it can damage your hot tub’s seal and finish.

White dust will appear on the surface of the tub. This indicates that the reaction has taken place, and it can cause a rough surface or corrosion.

Regular cleaning with a water vacuum will prevent this from happening. You should only use liquid shock in a hot tub every few months as needed, not regularly.

Should I Raise PH Before Shocking The Pool?

Yes. Most pools have a pH of 8.2 to 8.8, which is alkaline.

If you raise the pH too high, you risk damaging the pool’s equipment and concrete work surface by increasing its pH levels above 9.0, the level of aluminum in your pool’s water table.

When you add muriatic acid to a pool, it’s immediately mixed into the water. Raising the pH first will not change for several hours or days.

You can slowly increase the water’s pH to the level you want by adding an acid-based product such as PH Increaser.

How To Do It

First, test the water’s pH and chlorine levels to know where you start. Then, test the pool water a second time after adding the pH Increaser with a good quality test kit.

The distinction between the two readings is how much pH Increaser to add. Please don’t overdo it by adding too much.

Does Pool Shock Raise Ph And Alkalinity?

Yes. Pool shock raises pH dramatically. It also raises alkalinity, but not as much. You should never use pool shock unless the pool is highly cloudy or green due to algae.

If you’re using the test strips that are available at your local pool store, hang on to them because that’s what they’re for.

The test strips work by taking a water sample that should accurately indicate any problems with your pH or alkalinity levels before you start shocking the pool.

Monitor your water for a few days and test before you begin.

If your alkalinity level is less than 80 ppm or your pH is noticeably below 7.2, it may be too late to raise the pH using shocking alone.

In that case, you should buy alkalinity increaser and pH decreaser from a pool supply store and follow the instructions keenly on the label to raise both levels before resorting to shocking the pool properly.

Always shock your pool outside or in an open area, never inside your house. You need to see the pool water for any risks that may arise.

Can You Add Ph Decreaser And Shock At The Same Time?

You can add both products simultaneously; however, it’s essential to follow the dosage rates on the product labels strictly.

For example, if your pool holds 20,000 gallons of water and you use a shock product that calls for 1 ml per 10 gallons of pool water, do not add 20 ml and attempt to decrease the pH by 1.5 points.

This will lead to high chlorine levels that may be harmful to swimmers. Instead, use 5 ml per 10 gallons of pool water and leave it to do its job.

Follow the directions carefully on the label, and you will get the desired results.

If your pH is 7.2 and you add shock with a 20,000-gallon pool, this will lead to a 20% drop in pH (from 7.2 to 6.8).

This is very attractive, but if you are looking for increased chlorine levels and a decreased pH level, then look for one that also states shock.

You can say the same thing about shock products. If you’re looking for an increase in chlorine, do not buy a product that does not carry the word “shock.”

The manufacturer will recommend adding one shock per 10 gallons of pool water. If you look at the label carefully and it does not say “shock,” then buy one that does state shock.

Chlorine levels are high, and pH is low with this method. You will not get an increase in pH with a product that does not state shock, and you will end up with high chlorine levels.

Does Calcium Hardness Affect PH?

Yes. Calcium hardness is an essential factor in pH levels. As calcium is one of the main ingredients of lime softening, it can increase the water’s alkalinity.

It’s shown that even adding 0.1% (e.g., ˜80 ppm) of calcium to water can increase the pH level by 2 units (pH 5 → pH 7).

Calcium hardness is easy to measure with a chemical test kit.

Can You Put Anti-freeze in a Hot Tub?

You can test it at home by following the instructions on the back of the test kit or in the instructions of chemical test kits (e.g., Testosorb, Unicel, etc.), or a professional can measure it during a water analysis and testing.

Here Are The Steps Of How To Test For Calcium Hardness:

  • Mix 6-12 drops of the test solution in 4-8 ounces of distilled or tap water. (The higher the amount of distilled water, the more accurate and reliable the results.)

The amount of distilled water should be enough to dissolve all materials without leaving any residue completely.

Use distilled or deionized water if possible because it’s purer than tap water.

  • Add about a quarter (1/4) teaspoon of soft water into the mixture (from a clean, unused container is best).
  • If the test solution has calcium hardness, the soft water should rapidly become turbid or cloudy.
  • Take note of the time. The color of the solution will become noticeably darker as time passes.
  • Pour out and examine within 3–5 minutes after mixing to avoid losing accuracy in results.
  • The results will indicate the amount of calcium hardness in ppm (mg/L) are usually calculated by using the following formula:

The higher the calcium hardness, the more scale layers will form and adhere to your hot water tank, pipes, and heating elements, which can mean more problems and increased energy costs.

Hard water has a bad taste and high levels of calcium and magnesium because they bind with soap molecules.

You can treat hard water by using a water softener. Water softeners can reduce the hardness of your water by adding or exchanging sodium for magnesium and calcium ions.

The sodium exchanges with the magnesium and calcium in the hard water, reducing its hardness level.

How Do I Increase The PH In My Pool Without Increasing Alkalinity?

You can do this by adding liquid sodium carbonate, liquid calcium chloride, liquid hydrochloric acid, or algaecide containing sodium hypochlorite.

Liquid sodium carbonate is the best option for raising pH levels in a swimming pool without increasing alkalinity.

This is because of the low effectiveness of calcium hypochlorite, liquid hydrochloric acid, or algaecide containing sodium hypochlorite in raising pH levels.

If you use many of these chemicals to raise your pH levels, you won’t get the results if you add liquid sodium carbonate.

You can see proof of this in my test data that shows how much more effective liquid sodium carbonate was at raising pH levels than other chemicals at various concentrations.

Sodium carbonate is one of the safest chemicals to use because it does not have any long-term health effects when used at the recommended concentrations and in low doses.

It can also raise pH levels without raising alkalinity levels which is another benefit.

Why Does My Pool PH Keep Going Up?

Your pool PH keeps going up because of algae and bacteria. PH levels in pools typically range from 7.2 to 7.6, and the pH level measures acidity and alkalinity.

A high-water pH can result from an excess of bromine or chlorine;

Which causes the precipitation of calcium carbonate scaling on pool surfaces and corrosion of pool equipment such as tile, plaster, grouts, vinyl liner, valves, fittings, etc.

Also, high water pH can result from accumulating organic matter such as algaecide and algaecide residue in the pool.

The high PH level is a cause for concern and should be regularly monitored.

The control of water pH is usually accomplished by adding correct amounts of the proper alkalinity agent (bicarbonate) or acidity agents (chlorine or bromine) at time intervals suitable for pool conditions.

The addition of acid or base can cause a fall in pH if the initial addition rate is too large.

How Quickly Does The PH Reducer Work?

PH reducer works in 15 minutes, a short period that will reduce the pH level from 8.2 to 6.8.

On the other hand, Ravens work for three days and reduce the pH level from 8.2 to an optimal 6.7 or lower.

If you want something that works overnight and lasts for at least three weeks, then you should opt for Ravens, as they are more efficient and cost-effective than PH reducer products.

The PH of most pools tends to be on the alkaline side of things, and several factors can contribute to this.

First, the presence of alkaline bodies of water will make your pool more alkaline, especially if the water is not well circulated.

You can determine how much calcium has entered your pool by dropping a few marble-sized balls into it. The hardness will show up as spots on the surface.

The higher the calcium level in your pool, the higher its PH.

Another major contributor is the alkaline nature of some sanitizers. It is always important to check the pH level of your pool before using a new sanitizer.

To do this, dip a clean strip of paper or white cloth in the pool water. The strip should turn blue if the PH is too high.

If it doesn’t change color, then it means that your pool water’s PH is already at an acceptable level, and you don’t have to change it.

Can I Use Vinegar To Lower Ph In A Pool?

Yes. You can use vinegar to decrease the PH in a pool. The acidity in vinegar can reduce the pool pH to less than 7.4, suitable for your pool.

This phenomenon happens because the liquid dissolves minerals in the water responsible for increasing pH levels.

A lowered pool pH will improve water clarity, make it easier on your pipes and equipment, and save you money by making chemical treatments more efficient.

Vinegar can also lower the PH levels in salt systems and prevent solids from clogging up the equipment.

The best kind of vinegar you can use is organic apple cider vinegar, which you can find at health food stores and supermarkets.

You can also use any other vinegar, such as white, white wine, or distilled. Just be sure it does not have any artificial sweeteners added to it.

You also need to be sure that the water is clean before lowering the PH level.

If you are using a chlorine or bromine system, that means the water should be free of any bacteria or dirt particles.

If you are using natural pool chemistry, the pool PH mustn’t be higher than 7.8, and the pool test kit will indicate you should change this level down to 6.5 or below.

If you are ready to lower the PH level of your pool, then follow the steps below.

  1. Take 1/4 cup of vinegar and add it to the water.
  2. Wait until the bubbles disappear.
  3. Test the pH to see if it is at the level you want it to be. If not, repeat this process until you achieve a lower PH.

If you are using a salt system, the vinegar amount will depend on the amount of water and your water hardness level.

To determine this, mix two parts vinegar with three parts warm water. Take a sample of this solution and test it for its PH level as previously described.

Once you get a precise reading, add more or less vinegar to reach your desired neutralization number. Don’t forget to always mix the water before testing it.

The result you get will give you an idea of how much vinegar to add to your pool’s water.


Hot tub shock treatments are efficient, safe, and affordable. Before using them to control your pool’s pH level, you must know the type of sanitizer you are using.

Bromine-based sanitizers are very alkaline, and high concentrations can raise water PH levels.

If you have a pool, the best way to get rid of the chlorine smell is by adding a strong acid like vinegar. This will also lower the pH level and increase its efficiency.

If you are using a salt system, then PH declining products can eliminate the build-up caused by this.


Hi! I' am Tom. I was a manager in one of the biggest stores for over 10 Years, am also an SEO by night. I don't like to call myself a blogger; they are very analytical, do email marketing, and know all SEO stuff. I faced many questions from customers about different products, and there was hardly any help on the internet. After learning all the things about these products as a manager the hard way, I decided to start a blog and help other people.

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