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How Much Sodium Hypochlorite To Add To Pool

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How Much Bleach To Add To A Pool To Make Swimming Safe

How Much Chlorine Do I Add To My Pool?

Posted on Last updated: May 23, 2019

You may be asking yourself how much bleach to add to a pool to make swimming safe. When you get a new pool, at first the excitement is too much to handle. That is until you come to the realization that is the headache of keeping pool water clear.

People on social media make maintaining a crystal clear pool look easy. However, you may find that it is costly and frustrating to maintain a crystal clear swimming pool. Luckily, there is a cost-effective alternative that can make your life easier.

Most people chose chlorine as a pool sanitizing agent. When you add chlorine to pool water, it kills microscopic organisms in the water that cause the pool to become cloudy. Bacteria such make the water unsafe to swim in.

It is easy to understand the chemistry behind how chlorine breaks down bacteria. Chlorine destroys microbes by using their negative charge to rip through the outer membrane rendering it useless.

Liquid bleach or hypochlorous acid is the most popular form of chlorine. When the liquid bleach hits the water, the molecules turn into negatively charged ions and immediately get to work cleaning the bacteria out of your pool.

Sodium Hypochlorite Vs Calcium Hypochlorite: Which Is Better

Dont you just want your pool to look crystal clear and have the assurance that it is always safe to swim in? You can do that by using a chlorine based pool sanitizer. Sounds easy till you start looking at the options available. When it comes to Sodium Hypochlorite vs Calcium Hypochlorite, which is better for your pool?

Sodium Hypochlorite is better than Calcium Hypochlorite for shocking your pool. On the other hand, Calcium Hypochlorite is better than Sodium Hypochlorite for regular maintenance sanitization.

Both are unstabilized sources of chlorine and will not add Cyanuric Acid , a chlorine stabilizer, to your pool.

During Extended Periods Of Hot Weather

When the weather is hot, the water levels will rise above the optimal temperature range of 78ºF82ºF, making it easier for bacteria and algae to thrive. Additionally, UV rays from bright sunlight will decrease the amount of free chlorine in your pool.

Make it a routine to shock your pool more often in the summer, when the weather is hot. Use cyanuric acid to stabilize the free chlorine and prevent UV rays from consuming the chlorine at a higher rate.

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Where To Buy Liquid Chlorine For Swimming Pool

Across the United States, you can purchase the liquid chlorine on Walmart and SamsClub. Other locations to look out for this product within the US include Alabama, Alaska, and Arizona.

You can also check for a local HASA dealer into the general sales of bulk liquid chlorine, even at a reasonable price. Some other locations are Arkansas, California, and Connecticut.

How Much Liquid Chlorine Do I Put In A 15000 Gallon Pool

Sodium hypochlorite for swimming Pool Lapi

It implies that whether for a 20000-gallon pool, for 15000-gallon pool, or a 10000-gallon pool, you will be required to have chlorine of about 0.00013 ounces per gallon of pool water.

Adding chlorine calcium hypochlorite, sodium hypochloriteto your swimming pool in the evening, instead of the morning can reduce cut your chemical costs BY 50%.

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How To Maintain Water Clarity After Adding Sodium Hypochlorite

After adding the sodium hypochlorite , you should always follow up with chlorine tablets or calcium hypochlorite.

This will maintain your water clean and clear of organic pollutants and germs for the next two weeks. After this time period, your pool should be clear of floating algae in swimming pools and impurities, which will prevent any issues from occurring when it comes to your health or damage to the vinyl liner.

How Much Calcium Hypochlorite Is Needed Per Gallon Of Water

Calcium hypochlorite is sometimes used as a way to clean drinking water. This is a completely different process and requires a specific product with a lower chlorine concentration. However, when you go through this process with an approved drinking water clarifier, you will use about a teaspoon for every two gallons of water.

When working with a pool, you will notice that it is quite a bit more water, and a teaspoon of calcium hypochlorite will not cut it. Therefore you will need a one-pound bag for every 10,000 gallons of pool water. This is why its so important to know the size of your pool before using any chemicals.

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The Following Information Relates To The Use Of Chlorine Disinfectant In The Forms Of Calcium Hypochlorite Or Sodium Hypochlorite

When it is necessary to increase the level of chlorine in a swimming pool or spa, the following procedure should be used:

  • Determine the free available chlorine in the pool water in ppm . Use the DPD test kit.
  • Determine the amount in ppm you want to increase the chlorine.
  • Determine the ppm change using the following to increase: Desired ppm – current ppm = ppm change. Example: Desired ppm – Current ppm or FAC = 18 ppm change.
  • Identify the chlorine compound to be used to increase the chlorine level. Use product label chemical dosage, product label chemical adjustment, or a formula to determine the amount of product to use to produce 1 ppm free chlorine per 10,000 gallons of pool water. .
  • Make sure the pH is within the acceptable range of 7.2-7.8. These chlorine compounds will significantly change the pH and affect the effectiveness of the chlorine.
  • Determine the volume of water the pool holds.
  • Parts per million is calculated by weight. One ppm is equal to 1 pound of chlorine in 1 million pounds of water. One million pounds of water is approximately 120,000 gallons. Converting to ounces, 1 ounce of chlorine in 7,500 gallons equals 1 ppm.

    EXAMPLE 1: How much calcium hypochlorite must be added to a 100,000 gallon pool to raise the chlorine residual from 1.0 ppm to 20 ppm?

    EXAMPLE 2: How much sodium hypochlorite must be added to a 100,000 gallon pool to raise the chlorine residual from 1.0 ppm to 20 ppm?

    How Much Chlorine To Add To Pool Per Gallon

    Use Calcium Hypochlorite Pool Chlorine-Common Mistakes

    Pool cleaning and maintenance is the language of pool owners anywhere. Whether you are hands on with your pool or you outsource the tasks to someone else, you have a fairly good idea about this subject. If you have done your research on pool cleaning and maintenance, you would know by now that Chlorine is a very important element in that process.

    If you want to look at all the other importance of pool cleaning , I would recommend reading âbenefits of pool maintenanceâ. I listed out what you would need to keep your pool in pristine condition year-round.

    Some of it runs automatically and requires minimal input from you. Just install it, put the device on the right setting and you can rest easy knowing that your pool will be clean.

    Chlorine does its job of sanitizing your pool without any help from you. But , you need to get it right with chlorine or else, your pool could quickly turn into a chemical death trap.

    In very small doses, Chlorine barely affects the bacteria life in your pool. In massive doses, you pool will definitely be free of bacteriaâ¦and any other life form for that matter, including humans. With the right dose, you get the best of both worlds.

    A pool where you and your family can enjoy without worrying about the presence of bacteria. Of course, you might want to take certain precautions to prevent problems like skin irritations which can be caused by chlorine even in small doses. Want to know more about what chlorine does to the body? .

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    Measure The Volume Of The Pool

    Measure The Volume Of The Pool

    To know how much bleach you need to add to the pool, it is necessary to calculate the volume of the pool. Just multiply the length of the pool with the width and depth, and you will get the volume in cubic feet. The 1 gallon of bleach will raise the free chlorine level by 2 ppm on the 30,000 gallons of water. To mildly shock a 30,000-gallon pool, you will need 2.5 gallons of bleach to raise the free chlorine concentration to 5 ppm.

    How To Use Sodium Hypochlorite In Your Pool

    If a pool is used regularly for swimming, there are lots of organic pollutants and germs.

    These can cause stains on the pool surface and can even damage the vinyl liner. Sodium hypochlorite helps remove these organic pollutants from water, leaving the pool free of debris and grime.

    When it is time again for summer fun in the sun, it is important to clean your pool properly to avoid any health hazards or unsightly stains caused by impurities.

    To keep your pool healthy and sparkling, follow these instructions on how to use sodium hypochlorite in your swimming pool:

    • Measure out the amount of sodium hypochlorite that you want to use in your pool. Next, place the sodium hypochlorite into your skimmer basket or wading pool. This will make it easier and quicker to dissolve in the water.
    • If you have a sand filter, you should be careful about adding this chemical to not damage your filter system.
    • The ideal time to add sodium hypochlorite is right before shutting off your pools pump so that it will dissolve overnight and not be exposed to sunlight.
    • After adding this chemical, do not run any other equipment or turn on any pumps for at least 24 hours for proper mixing and dissolving of the compound in the water.

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    Precautions Of Using Sodium Hypochlorite

    • Be careful about adding more sodium hypochlorite than is prescribed because it can also irritate eyes, skin, and lungs.
    • If you accidentally release too much sodium hypochlorite into the air, it is recommended that you contact a professional who can help contain it.
    • Always keep sodium hypochlorite out of reach of pets and children so that it doesnt become a choking hazard in your home.
    • Make sure to keep an eye on your pool water pH level and adjust it if needed.
    • Its best to use a test strip to see how much chlorine or free chlorine is left in the water after youve added sodium hypochlorite.

    Add Bleach To Your Pool

    Sodium Hypochlorite Solution, NaOCl

    Now that you have determined how much chlorine is in your swimming pool, you can add the bleach needed to bring your levels back to optimum levels.

    There are a lot of variables that goes into determining how much bleach you need to add to your swimming pool. You can use this pool calculator website that will ask a few questions and help you determine the amount of bleach needed.

    I have also added a table below for the most common pool sizes based on water volume to help you determine the amount of bleach you may need to add.

    Pools Water Volume
    25,000 Gallons 52 Ounces

    For example, if you tested your swimming pools chlorine levels and determined that there was 2 ppm of active chlorine in 15,000 gallon pool and would like to raise it to 4 ppm you can use the chart above. It would take 62 ounces of bleach to raise the level by 2 ppm.

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    Weekly Chlorine Dose For The Swimming Pool

    Once the chlorine value is at the right level, you can keep it at that level with chlorine tablets. Chlorine tablets are better than chlorine granules because the tablets dissolve slowly and keep the chlorine value constant.

    Unfortunately, it is not easy to say how many chlorine tablets you should add to the swimming pool or how often you need to add them. The chlorine tablet dosage does not depend solely on the volume of the swimming pool. A lot of other things also play a role, such as:

  • The number of hours of sunshine and the UV valueThe reason being that the chlorine value is degraded by the UV rays of the sun.
  • Leaves and insects in the swimming poolLeaves, insects and other dirt cause the active chlorine to become exhausted
  • The number of hours swum per dayThe more swimming there is, the quicker the chlorine degrades
  • If the swimming pool isnt used much, be sure to check the water quality once a week using a water tester. If the pool is used more than 2 days a week, the water quality needs to be checked 2 to 3 times a week.

    If the pH value is good, check whether the chlorine tablet has completely dissolved or not. Once the chlorine tablet has dissolved, it is best to add 1 chlorine tablet per skimmer. Use these chlorine tablets for this. For a small inflatable pool, it is best to use these 20 gram mini-chlorine tablets. You can add one of these per 3 m³ of water.

    Too much chlorine in the water

    Chlorine in the swimming pool too low

    Chlorine tablet does not dissolve

    How Much Liquid Chlorine Needed For 10000

    It is generally recommended for any pool owner of a 10000-gallon pool to use a single pound of calcium hypo for its shocking. Also, sodium hypo of 10 ounces alongside approximately 12.5% chlorine is required to sanitize your pool.

    While observing and executing all these, ensure the pool water is at its standard temperate level. Also, ensure the pools pH falls between 7.2 and 7.6 while maintaining its alkalinity between 80 and 120 ppm.

    The maintenance level is not the same for a 10000-gallon pool, whether a chlorine-based pool or a saltwater pool. The chlorine-based pool requires more maintenance than the saltwater ones.

    Generally, whether for a 10000-gallon pool or whatever category of the pool, the saltwater pool does not need much treatment. The exception to this is an influx of algae or the contamination of the saltwater pool by soil, oil, or other liquid contaminants.

    The reason for this is not far-fetched. Saltwater pools use chlorine generators to produce a chlorine compound, which is almost like the chlorine present in shock treatments.

    Meanwhile, the best usage option regarding the saltwater pool system is the Sodium Hypochlorite liquid chlorine, as it helps to enhance chlorine levels in the pool water. You can use it in treating your hot tubs and spas as well.

    Once used in a hot tub or swimming pool, it is instantaneously ready to erase viruses, bacteria, algae, and any other microorganisms present within the water due to its quick and rapid action.

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    Amount Of Chlorine To Use Per Gallon Of Pool Water

    Related Articles

    Keeping a pool sparkling clear isnât the easiest project. Whether you have a round ring-top pool or an in-ground pool, maintaining the chlorine balance in the pool prevents bacteria from growing in the water. The basic balance of chlorine to water is between 1 and 3 ppm, or 0.00013 ounces of chlorine per gallon of water.

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    How Much Bleach To Shock A Pool

    Differences Liquid Pool Chlorine & Granular Chlorine – What Are They?

    So, How Much Bleach To Shock A Pool? To disinfect a surface, the CDC recommends about 5 tablespoons of regular bleach per gallon of water. For a liquid pool shock, it is preferred to dilute it at a rate of 2.5 to 3 tablespoons per gallon of water. For a 5,000-gallon pool, you need 3 cups or 24 oz of Clorox bleach to raise the chlorine level.

    When we sayShock a pool, it refers to the process of adding chlorine to the pool water, so it can raise the free chlorine level. Before you start adding bleach to shock a pool, you need to know how many gallons of water your pool has. Therefore, we will explain everything in detail below so that you know exactly how much bleach you need to add.

    Swimming Pool Size

    For those who want to know more, you can read our article, How a Bathtub Works? Plumbing & Drain System.

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    What Is Chlorine

    Chlorine is a naturally occurring chemical and is one of the building blocks of matter. Chlorine is an important nutrient for plants and animals and provides clean drinking water to people by killing the bacteria and viruses that can make us sick. Chlorine has also been used for decades in home disinfectants.

    How To Use It

    Sodium hypochlorite can be applied manually or with use of a positive displacement feeder such as a diaphragm, peristaltic pump or a venturi feeder system. Manual addition should be done in the deep end of the pool away from any metal parts such as rails, ladders or light rings. Pour the liquid very slowly while holding the container as close to the water surface as possible. Pouring from a high position will lead to undiluted splash back of product on decks and clothing, which will cause bleaching. It is recommended to wear protective gloves and goggles when applying. Sodium hypochlorite feeder pumps should be set up with the injection point after all equipment to prevent undiluted chemical contact with pumps, filters and heaters. Feeder pumps should be calibrated in accordance with the manufacturer’s specifi cations, and tubing should be checked regularly for brittleness and leakage. Feeders should be installed to avoid siphoning.

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    How Much Liquid Chlorine Needed For 20000

    The general and ideal measure of the pool water balance against chlorine is always expected to be between the range of 1 to 3 Parts Per Million .

    It implies that whether for a 20000-gallon pool, for 15000-gallon pool, or a 10000-gallon pool, you will be required to have chlorine of about 0.00013 ounces per gallon of pool water.

    You will also need to calculate the amount of chlorine required to chlorinate your swimming pool super since different pools have various kinds of sizes.

    Since most of the products you will purchase at the store will be mostly best suited for the swimming pool with the 10,000 gallons of pool water capacity, it simply means for a 20000-gallon pool you will buy a double of the products.

    Doing this is just the wisest and most rational decision to make. You will not need to rack your brain and disturb yourself about calculations on the amount of liquid chlorine to use for this kind of large pool.

    Just in case you are feeling or getting confused, follow the instructions on the product on how much liquid chlorine to add to raise the treatment level to your taste, especially to the volume of pool water available to you. It would be best if you did this after calculating the size of the pool, as this will help determine the number of gallons it contains.

    Also Check: Convert Chlorine To Saltwater Pool Cost

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