Baking soda in pool to raise ph
Maintain Your Pool with Baking Soda
Baking Soda to Raise pH and Alkalinity in Pools
Most people know that chlorine is an important chemical in keeping pool water safe for swimming. But adding too much chlorine can lower your pool’s pH as well as its total alkalinity. When alkalinity falls, it is more difficult to maintain a stable pH. Plus, a lower pH and alkalinity of your pool water creates several negative effects, from itchy skin and stinging eyes for swimmers to corrosion of your pool ladders, liner, or other components.
When your water’s alkalinity is too low, any chemicals you add will exponentially affect the pH, creating a condition known as pH bounce. You’ll also need to add more chlorine to get the same sanitizing effect, and your swimmers will complain. Overall, pool water with inadequate alkalinity levels can be frustrating and costly.
Fortunately, there is a simple and cost-effective way to maintain your pool’s alkalinity and pH. You might use it in your cookie recipes or to freshen your fridge. This handy tool for pools is none other than Arm & Hammer baking soda, although you’ll need pounds of it rather than a pinch.
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. You can maintain your pool for a fraction of the cost by going straight to the source and using pure baking soda in your pool.
Using Baking Soda to Increase Alkalinity
Follow these steps to test and raise your pool’s alkalinity and pH with baking soda.
- Test your pool’s alkalinity daily. Ideally, your pH is between 7.2 and 7.8 and the alkalinity is between 110 and 150 ppm (parts per million). If your alkalinity level is lower, and especially if less than 80 ppm, then you need to raise the pool water alkalinity.
- Purchase baking soda in bulk (available in pouches up to 15 lbs.). You will be adding anywhere from 1.5 lbs. to as much as 8-10 lbs. of baking soda to your pool, depending on how low your alkalinity is.
- Determine amount to add. You’ll need to figure out how much baking soda to add to your pool. Pool chemical measurements are based on 10,000 gallons of water. If your pool is larger or smaller, you’ll need to adjust your math. A rule of thumb is 1.5 lbs. of baking soda per 10,000 gallons of water will raise alkalinity by about 10 ppm. If your pool’s pH tested below 7.2, add 3-4 pounds of baking soda. If you’re new to adding pool chemicals, start by adding only one-half or three-fourths of the recommended amount. After retesting, you can always add more if the level is still low. Otherwise, you could swing too far in the delicate pH balance and need to add an acid.
- Add baking soda to the pool. Sodium bicarbonate is packaged in powder form and can be sprinkled directly into your pool water. Spread in wide arcs across the pool’s surface to avoid dumping it all in one spot. Beware of adding baking soda on a windy day, as the powder can go airborne.
- Wait at least six hours. Let the baking soda dissolve into the water. Turn on your pool’s circulation system to help it disperse.
- Retest and repeat if needed. Between 6 and 24 hours after you added the baking soda, retest your pool’s pH and total alkalinity. If the pH is below 7.2 and the alkalinity below 110 ppm, then repeat these steps.
Correcting Common Pool Problems with Baking Soda
Baking Soda and Green, Blue, or Yellow Algae
If you have algae in your pool, you’ll notice dull green water, slimy walls and pool bottom, and a slippery pool surface. 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.
Baking Soda and Pool Corrosion
If you’re noticing corrosion on your pipes or ladders, or pits on your pool liner or tiles, you have very low water alkalinity. Test and add Arm & Hammer baking soda according to the instructions. You will typically need at least 8 lbs. if your levels are low enough to cause corrosion.
Scaling Buildup on Pool Surfaces
Too much calcium and pH as well as high alkalinity levels are culprits for pool scaling. So, too, is hard water. Stop using calcium-based disinfectants and keep your pool’s alkalinity between 80 and 110 ppm. Test your levels and carefully add a pool acid, such as muriatic acid to lower pH to below 7.8. If you go too far, add baking soda sparingly to reach the appropriate levels.
Cloudy Pool Water
If your pool water is cloudy or murky, there could be a number of causes. Check your pool’s filtration system; often the problem lies there. Also test your water’s hardness. If your water is naturally hard, or contains a lot of minerals, you will want to stop using any products containing additional calcium and keep your alkalinity levels lower than 110 ppm (but higher than 80 ppm). To cure cloudy pool water, superchlorination is usually the easiest fix. Be sure to test your pH levels after the hyper-chlorination treatment, and slowly add baking soda to your pool water, if needed, to get to between 7.2 and 7.8. Higher pH levels can lead to cloudiness.
For a more complete guide to pool care and rectifying common issues, see our comprehensive Arm & Hammer Pool Care Guide.
How to Clear a Cloudy Pool with Baking Soda
For a simple method to keep your pool crystal clear, we developed Arm & Hammer Clear Balance™ Pool Maintenance tablets. Our scientists have done the math for you, and 1 to 4 tablets per week, depending on the size of your pool, will keep your water clear all summer. Follow the package directions and dispense through your skimmer or floater. Tablets dissolve in about 15 minutes and will help keep your pool’s pH and alkalinity at proper levels. It’s super easy to use and Clear Balance™ can help prevent pH rebound and other pool problems all season.
Baking Soda for Pools: An Easy Way to Raise pH and Alkalinity
Don’t waste money on commercial alkaline-increasing pool products when you can use baking soda to raise your pool’s pH and alkalinity instead. Follow the procedure above and the guidelines in our Pool Care Guide to correct common pool issues. And use Arm & Hammer Clear Balance™ Pool Maintenance tablets to keep a clear, clean, safe pool without a lot of hassle.
Resources
https://www.swimuniversity.com/household-products-clean-pool/
https://www.hunker.com/13415244/how-to-lower-the-ph-in-a-swimming-pool-with-baking-soda
https://www.armandhammer.com/-/media/aah/feature/articles/baking-soda/baking-soda-articles/pool-owners-guide. pdf
https://www.armandhammer.com/articles/diy-pool-maintenance-tips
https://www.armandhammer.com/baking-soda/pool-maintenance/pool-maintenance/clear-balance-pool-maintenance-tablets
http://poolforthought.com/raising-pool-alkalinity/
How Much Baking Soda to Add to Pool: And Why!
Having a pool has a way of turning you the owner into a chemist, without you knowing it. With so many tests and measurements needed to ensure the quality and safety of your pool, you will find yourself working almost like a chemist in your free time. With baking soda, however, you can maintain the quality of water in your pool, without having to go through the stress of running so many tests. Baking soda is safe and straightforward to use, while also providing your pool with a clean, clear, sparkling water that is pleasant to swim in. Baking soda does not sting the eyes; neither can it cause drying of the skin.
In case you are wondering how baking soda works, and how you can use it to improve the water quality of your pool, just keep on reading as I open you up to the many benefits of this excellent substance.
Can Baking Soda Be Used to Clean a Pool?
Maybe you have heard the rumors, and you are still in doubt about how you can clean your pool by merely adding a baking soda, then this article will help clear your doubt. To start with, let me help you understand how baking soda works. Baking soda doesn’t really “clean” your pool per se, what it does is to maintain the PH level of the water in your pool. Maintaining the PH level of the water means keeping your pool healthy. Baking soda scrub is used for cleaning pool tiles.
About the PH levels and Alkalinity of a Pool
PH level of water is one of the most important factors to consider when cleaning a pool. Maintaining the right PH will ensure that your pool is healthy enough to swim in. A high PH level indicates that the water is alkaline, whereas a low PH level signifies acidic water. Acidic water is a problem for both the swimmer and the pool itself. It can cause drying out of both the skin and hair and may also cause corrosion of pool tiles and fixtures.
Factors like rainfall, which have a PH level of 4-5, can sometimes change the PH level of your pool to make it more acidic and sometimes this causes damage to the pool, leading to repair or remodeling of the pool. Other factors that may influence the PH level of your pool include organic debris, body fluids, and chlorine. This goes to show how important it is to keep the PH level of your pool in check always.
Due to its ever-increasing acidity, alkalizing agents are always added to pool water to help maintain the PH level. Alkalinity is a measure of how much acid your pool water can absorb. It does this by absorbing hydrogen, which it uses to create neutral bicarbonate ions.
In other words, PH levels represent the current acidic level of your pool, whereas alkalinity measures your pool’s ability to break down acid. On a scale of 0-14 on the PH scale, with 7 being the neutral point, you would want your pool to lie between 7.2-7.8 (slightly alkaline).
How Does Baking Soda Work in a Pool?
Healthwise, baking soda is used to minimize heartburn, and it does this by neutralizing the acid content of the body. Due to its acid-neutralizing ability, baking soda can also be used in acidic pools to offset the acid content of the pool, such that they become reduced to comfortable neutrality (slightly alkaline) that is not harmful to the skin. An acidic pool is both corrosive and irritating.
Baking soda can work wonders in a pool. Baking soda can:
- Help to clear cloudy water and restore the sparkle
- Spot-treat algae
- Make the pool water softer on your skin.
- Prevent corrosion and damage to pool equipment
- Complement the effectiveness of chlorine
The PH of baking soda is 8.3, which means that it is highly alkaline. The bicarbonates contained in a baking soda are both positively and negatively charged. It can attract new ions and form a stable compound that settles outside of the water. The presence of positive and negatively charged ends allows the bicarbonates of baking soda to accept both acidic and alkaline ions, depending on what PH you are trying to achieve. In other words, baking soda can act both as an acid or a base in a solution depending on the environment you are subjecting it to.
How Does Baking Soda Work With Chlorine To Clean A Pool?
Due to the versatile nature of chlorine, it can also be used to clean an acidic pool with a low PH level. But, to get the best out of chlorine in cleaning your pool, your pool water needs to be slightly alkaline.
However, keeping the chlorine level of your pool in check does not necessarily guarantee a comfortable swimming pool. Your pool can still feel cloudy and uncomfortable to swim in because an acidic pool would most likely have too much chloramine present in it, which will end up stinging the eyes while also producing some “pool smell.” So, it is essential to keep the PH level and chlorine level of your pool water in check to achieve a comfortable swimming pool.
Are There Any Risks From Using Baking Soda In A Pool?
It is quite reasonable to find that those who haven’t tried using baking soda to clean their pool and those who don’t understand how it works will be concerned about the risk factor involved in using baking soda. However, I am here to reassure you that baking soda is safe to use for pool cleaning. Due to its inherent quality of being able to behave as an acid or a base, it can conveniently adjust the acidity and alkalinity of a pool without any harmful side effects.
Depending on what PH you wish to achieve, adding a little baking soda will simply not affect the PH level of your pool, thereby causing it to remain almost the same way (acidic). However, adding too much baking soda might also raise the PH level of your pool to an undesired stage (alkaline).
In the case where too much baking soda is added to hard water, it can cause a build-up of calcium around your pool. Too much calcium can cause cloudiness around a pool, while also building up scales on the surface of the pool. These scales that are produced by excess baking soda in hard water can cause problems as they tend to block your pool filters.
Remember, we discussed earlier how pool water is always tending towards acidic levels due to naturally occurring factors like rainfall? With that in mind, you need to understand now that the only factor that can make a pool water alkaline is when it has been adjusted incorrectly by adding too much baking soda.
Experts advise that you add the right quantity of baking soda and allow it to dissolve for about 24 hours, after which you can retest again to see if you have achieved the desired result or adjustments still need to be made.
How to Clean Your Pool Using Baking Soda
The following is a step by step guide on how to use baking soda in washing your pool:
Step 1:
Run a test to determine the alkalinity and PH level of your pool. A PH level less than the standard minimum of 7.2 indicates that you need to add baking soda to help move the PH towards 7.2 to avoid having acidic water in your pool.
Step 2:
The next step is to determine the right amount of baking soda that you can add to achieve the desired 7.2-7.8 range for your pool. Also, the desired alkalinity for the PH level mentioned above is 100ppm. As per standard, 1.25 pounds of baking soda is enough to raise the PH level of a 10,000-gallon pool by 10ppm, so to achieve a 100ppm alkalinity, you would need 12. 5 pounds of baking soda for a 10,000 gallon of pool water.
Step 3:
This is the time to purchase your baking soda. You can get baking soda directly from suppliers, manufacturers, or online stores. Given the fact that you would need lots of it, you may likely not find your local grocery store packed with several pounds of baking soda.
Step 4:
This is the part where you add the necessary quantity of baking soda to your pool. However, you have to start small. You can’t afford to add the whole amount of soda that you feel might be enough (according to your calculation) at once, as this can lead to your PH level deviating far from the desired PH.
As a rule, you don’t add more than 2.5 pounds of baking soda in a day. Instead, start off adding the required amount (e.g., 1.25 for 10,000 gallons of water) of baking soda that can raise the alkalinity of your pool to 10ppm. You can sprinkle your baking soda over the surface of the pool, or you pour into a skimmer.
Once this is achieved, you stir the pool using a circular motion, as this will help the soda dissolve quickly and also prevent cloudiness around the pool.
Step 5:
After proper stirring, give it time to circulate, say 6-10 hours for adequate circulation. Although the time of distribution largely depends on pool size. A larger pool will take more time to stabilize, whereas a smaller pool will take less time.
Step 6:
Repeat the same process if, after testing, you did not get the desired PH.
How To Use Baking Soda To Spot-Treat Algae In A Pool
It is common to find some form of black or brown spots around the pool sometimes. These black and brown spots are a result of algae. However, there is no need for you to panic as I will show you how to spot-treat algae problems in a pool.
Step 1:
Visit your grocery store, purchase any algae killing product, and proceed to add it into your pool by following the manufacturer’s instructions written on the labeling.
Step 2:
Allow the algae to kill the product to circulate. Again, the time taken for this product to distribute is dependent on the size of your pool. However, it may take anywhere between 6 and 10 hours.
Step 3:
After proper circulation of the algae killing product, sprinkle your baking soda, allowing it to have direct contact with the problem area.
Step 4:
Now, scrub the affected area using a pool brush and watch how the algae disappear.
Alternatives To Baking Soda For Raising PH Levels
Although baking soda is effective and recommended by most for adjusting both PH and alkalinity levels in a pool, there are certain cases where other substances might work best. For example, a pool with the right amount of alkalinity level may possess a slightly lower PH level, in which case using baking soda may not be the ideal option. However, a compound like soda ash, also known as sodium carbonate, will work just fine for the scenario discussed above, in which case adding it in small quantity will only affect the PH, leaving your alkalinity level untouched.
E.g.: To adjust the PH level of a 10,000-gallon pool from 7.2 to 7.6 would require about 21 pounds of baking soda. However, a closer look would indicate that the amount of baking soda mentioned would only so more damage by increasing the level of alkalinity to 150 ppm, more than is required for a healthy and comfortable pool. With the use of soda ash; however, it would only take 12.2 ounces of soda ash in 10,000 gallons of the pool to move the PH level of the pool from 7.2 to 7.6. What is more, is that this soda ash process will only add 10ppm or less to the total alkalinity of the pool.
The pH level of baking soda is 8.3, so it takes a lot of it to raise a pool’s overall pH level. The upside is that using baking soda will never make a pool’s pH level higher than 8.3 (and if the pool’s pH level is higher, baking soda will lower it). Still, it’s better at adjusting the overall alkalinity of the water.
The Most Significant Advantage of Both Baking Soda and Soda Ash
Soda ash has a very high PH level of 11. 4, thus making it ideal for increasing the PH of water, without having much effect on alkalinity.
However, baking soda which has a PH level of 8.3, and can also be used for adjusting the PH level of a pool, but will have more impact on the alkalinity level as we saw in the example mentioned above. Overall, baking soda is ideal for adjusting the alkalinity of a pool, than it is for improving the PH level-even though it can also be used to an extent. Whereas soda ash is best at adjusting the PH level without impacting much on the overall alkalinity of the pool, as only a small quantity of it would be required to raise the PH level of a pool.
Conclusion
Baking soda provides a simple and effective means to keep your pool neat and healthy, while also providing a safe and comfortable swimming pool for you. However, for a more technical approach to adjusting the PH level of your pool without having to affect the alkalinity, you may want to consider using soda ash.
Why canfall, what problems can a low indicator lead to, when the level needs to be increased, how to raise it?
Contents
- When should I increase the level?
- What problems can low PH cause?
- How to increase the rate? 0. 5 kg0006
- HTH pH-Plus 1.2 kg
- Equi-Plus powder
When should I increase the level?
According to GOST R 53491.1-2009, normal pH value for a pool is 7.2-7.6. If the indicator falls below 7, then it must be urgently raised. The same document advises the use of caustic soda (caustic soda), sodium carbonate and preparations based on them for this.
What problems can low PH cause?
If the pH is low, the pool will be acidic. Hydrogen cations appear, which oxidize the surrounding substances.
This causes a number of problems:
- metal parts in the pool begin to rust;
- equipment deteriorates;
- grout breaks between tiles;
- the skin of people who have taken a dip in the pool turns red and itches.
In addition, some disinfectants work best at a neutral or slightly alkaline pH. Therefore, before making them, always check the level of acidity.
How to increase the rate?
Before using any product, it is necessary to determine the acidity of in the pool. Testing is carried out at least once a week. Calculate the required dose and apply according to the instructions for the drug.
In large pools, dosing systems (automatic devices) are used that regularly monitor the pH and add the drug in the right amount. In small reservoirs, the procedure is carried out manually.
Liquid preparations
Preparations in liquid form are usually solutions of alkali of a certain concentration . They are packed in canisters and plastic bottles. Apply at automatic dosing stations, or manually, after diluting.
Markopul Equi-plus
The drug is a 25% solution of inorganic alkali, it is produced in Russia, 30 liters costs at least 1900 rubles.
For manual application:
- Wear gloves for safety.
- Dilute the product with water in a separate container, reducing the concentration by 3-5 times (per 100 ml of the product 200-400 ml of water, and the drug is poured into water, and not vice versa).
- Pour the solution near the water supply. To increase the pH by 0.1 position, add 125 ml per 10 m3.
The drug should be applied gradually, controlling the level of acidity. The solution should not come into contact with skin and metal surfaces.
Neochimax Neo-Plus Zh
Means of the “pH plus liquid” category, Russian production. A 20 liter can costs about 900 rub.
If you need to add Neo-Plus manually, then do the following:
- dilute with water in a plastic bucket, reducing the concentration by 3-5 times;
- add the resulting solution to the place where the water is pumped at the rate of 100 g of the substance per 1 m3 of water to raise the pH by 0.1;
- take a technical break of at least 3 hours.
You can pour the solution evenly around the perimeter, stirring the water. Work with the drug in goggles and gloves.
Aqualeon pH-plus
Another product made in Russia. A 30 l canister is sold at a price of approximately 1800 rubles. It is an aqueous solution of alkali with active additives.
In manual mode Aqualeon acidity regulator is used as follows:
- Diluted in a separate bucket, lowering the concentration by 5-10 times (400-900 ml of water + 100 ml of the preparation).
- The resulting solution is added to the pool in small portions. Dosage: 125 mg per 1 m3 to increase the pH by 0.1.
For example, for a pool of 10 m3 and raising the pH from 6.7 to 7, it will be necessary to pour 3 liters of 750 ml of the prepared solution. Read more about Aqualeon chemistry here.
Powder products
Products are small granules similar to powder. There are quite a few manufacturers, both Russian and foreign. The packaging is also different. You can purchase a small package or a whole bucket of several kilograms.
Bayrol pH-Plus, 0.5 kg
This is a German trade mark. Packing 0.5 kg costs about 230 rubles. It is a concentrated powder consisting of bicarbonate and sodium carbonate.
Directions for use: 100 g of granules are added per 10 m3 to increase the value by 0.1. Pour into the place of water supply or at several points along the perimeter. Do not add product before the filter. Read more about Bayrol chemistry here.
HTH pH-Plus 1.2 kg
Packing powder weighing 1.2 kg costs about 1000 rubles. Instructions for use:
- determine the required amount of the substance, at the rate of 150 g per 10 m3 to increase the pH by 0.2;
- dilute the powder in a separate container with a small amount of water;
- is poured in at the points of water outlet into the pool.
Granules dissolve quickly, do not form sediment and foam. They can be placed in the distribution tank of the dosing pump (1 kg per 10 l). Read more about the chemistry of HTH here.
Equi-Plus powder
A package of 0.5 kg will cost 130 rubles. The powder consists of 95% sodium carbonate. Code of Use:
- Take granules at the rate of 100 g per 10 m3 to raise the pH by 0.1.
- Diluted in a separate bowl and added in small portions to the pool.
Do not mix with other chemicals. Handle with care, avoid contact with skin, mucous membranes. The packaging shows a table that shows the approximate dosage for different volumes of pools.
Soda
Many pH booster powders contain sodium carbonate. It's soda ash. Therefore, sometimes it is used directly.
Step-by-step instructions:
- for 6 m3 you will need about 90 g of soda ash, for 12 m3 - 180 g - this is the amount to increase the indicator by 0.1;
- the substance is added to the skimmer or poured from the deeper side;
- is applied in small portions.
Baking soda (sodium bicarbonate) is sometimes used instead of soda ash. It must be added more, since when dissolved in water, it gives a slightly alkaline reaction.
Why can PH drop and how can it be prevented?
There are several reasons why the pH level drops:
- The pool is washed with acid products.
- Add water that does not meet the standards.
- The reading level of a pH meter is affected by temperature. The higher it is, the lower the pH value.
- The pH at the surface of the water can remove carbon dioxide from the atmosphere.
To keep the indicator always at an acceptable level, it is necessary to periodically measure it and add PH-boosting agents.
Video on the topic of the article
What you need to know about the pH level of the water in the pool, the video will tell:
Conclusion
Liquid and powder products, which include alkalis, are used to increase the pH level. Drugs are applied manually or with a dosing pump. You can use soda ash, following the dosage rules.
Permissible index value in the range 7-7.6 . High acidity of the water (low pH level) leads to deterioration of the pool material and negatively affects the skin.
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How to lower the ph level in the pool?
How to lower the ph level in the pool? Checking and adjusting the ph level of water in the pool, ph standard, useful tips
Checking and adjusting the ph level of water in the pool
It is recommended to check the level of the total alkalinity of the water in the swimming pool at the end of the afternoon, which is characterized by the lowest water temperature. Testing is often done at a point in the pool that is as far away from the filter as possible. It is worth noting that the correction of the level of alkalinity, which does not meet the established standards, is possible. At the same time, it is much easier to achieve an increase in alkalinity than a decrease in its level.
Use the following methods to change level general ph water, depending on the purpose:
Sodium bicarbonate (regular baking soda ) is recommended to raise the level.
Reduced with hydrochloric acid or sodium hydrogen sulfate.
It is worth noting that the safety of a body of water depends not only on the indicator ph , but also on the level of chlorine in the water , water hardness. Proper care and balance of these indicators will allow you to enjoy the process of being in the pool.
Increasing alkalinity
Before starting to increase the level ph in the pool , , turn off the pump and stop the water circulation. Next, you need to find the deepest part of the pool and start adding sodium carbonate to this place. The time interval that must be maintained is 2-3 hours. After that, you can resume the operation of the pump and the circulation of water for 10 hours. After the described manipulations, you can again check the alkalinity of the water. The proposed scheme is universal, but you can make your own adjustments.
Reduction of alkalinity
Reduction of the level ph in the pool occurs by introducing hydrochloric acid or, as it is also called, hydrochloric acid . It is worth noting that the procedure for lowering the alkalinity level takes more time than its increase.
When adding hydrochloric acid to the pool, it is necessary to stay at one point at all times. It is necessary to introduce the substance in small circular motions. The circulation and filtration of water in an artificial reservoir must be stopped for the duration of the procedure. The acid must be dissolved and already in the form of a solution added to the water at a time in a small amount.
The work of hydrochloric acid to reduce the total alkalinity of water in pool takes an average of 3 hours. After this period of time, the pump can be restarted.
It is erroneous to say that water alkalinity can be reduced by diluting it with a new water mass. The problem is that it takes too long compared to using hydrochloric acid, is not always effective and is not economically justified.
Hydrochloric acid precautions
One of the main rules: you should always add acid to water instead of water.
It is recommended to dissolve a small amount of hydrochloric acid (approximately 200 g) in a bucket of pool water three-quarters full. It is necessary to start making the solution with the pump turned off, being in a stationary position at the end of the pool, where the maximum depth is. The indicated dosage is recommended for a pool volume of 75 cubic meters.
Recommended dosage of baking soda to obtain a solution that increases Total alkalinity of water: Approximately 5 cups of sodium bicarbonate (1 liter) per pool of 75 cubic meters of water to raise the alkalinity by 10 ppm.
For large pools where the volume of water exceeds 300 cubic meters, it is better to use more than 4 liters of product per cycle. That is, if the level of alkalinity in your pool exceeds the norm, it is better to stabilize it in cycles, keeping pauses between them for 5-6 hours. It is necessary to test indicators immediately after this interval.
Work with acids in accordance with the relevant safety regulations: wear thick rubber gloves and goggles. Working with dry acid is more convenient from a safety point of view.
It is also recommended to use hydrogen peroxide (perhydrol) to disinfect the pool, subject to the dosage:
Hydrogen peroxide 60% - 0.5 liters per 1 cubic meter of water
Hydrogen peroxide 35% - 0.