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How Much Chlorine To Add To Pool First Time

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Chlorine: What Is It And How Much Does My Pool Need

How Much Chlorine Should I Add To My Pool

Everyone who has a swimming pool is familiar with chlorine, yes we need it to keep our pool sanitised and algae-free, but do we really know what it is? We keep talking about chlorine in a lot of our pool maintenance blog posts but weve never really touched upon how it actually works. For a lot of people, thats actually fine, I mean, we really dont need to know the nitty-gritty behind how pool chlorine works, the important thing is that we know that it works and we know how much we need to add to our pool at any given time! Right?

Fill Pool To Middle Of Waterline Tile And Do Final Debris Removal

Grab a garden hose and fill the pool until the water level reaches the midpoint of the waterline tile or middle of the skimmer weirs. Once youve got the water level where it needs to be, you can now clean leaves, twigs and debris from the pools bottom by using a wall and floor brush. This is also time to dust off your algae brush and pool vacuum. Also be sure to remove any debris from the leaf basket.

How To Add Liquid Chlorine To Pool

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As long as you have a swimming pool, youre going to need chlorine to maintain it. Thats because chlorine is the one effective chemical that works against harmful microorganisms, and thus, keeping the pool sanitized. But how do you apply it? Surely, you must have realized that there must be more to it than simply throwing some powdery substance into the pool and hoping it dissipates well enough before your next dive. What quantity do you apply based on your pool size and how do you do it? This article will show you how to add liquid chlorine to the pool so that you can ensure your water is clean before the next dive.

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After How Many Hours Can Swimming Activities Resume

You can resume swimming after the chlorine level reads below 5ppm. It is usually in a range of 4 to 5 hours for the liquid Chlorine to have fully worked out and safe for anyone to dive into the swimming pool.

In situations where there is an unusual liquid chlorine addition, maybe due to the condition of the swimming pool water, consult your swimming pool maintenance company or store for recommendations on the amounts of hours to spare for the chlorination processes to ease off and the pool will be good to be used.

When Should You Add Chlorine To A Pool

Oh No, I Put Too Much Chlorine in my Pool

Preferably open the pack in the open air, but out of the wind. For chlorine shock treatment, 3 measuring cups of 40 grams of chlorine granules should be added per 10 m³ of water. Ideally, this should be added after swimming or in the evening to ensure that the product can spread well throughout the pool.

Recommended Reading: How Much Does An Endless Pool Cost

Also Check: How To Heat Up An Above Ground Pool

Why Chlorine Is Necessary For Pools

Chlorine is one of the most necessary elements to keeping a pool sparkling clean and healthy for continual use. Chlorine is a chemical that when added to water creates a type of acid called hypochlorous acid. This weak chemical is able to kill bacteria that can live and grow in pool water, while still being safe for humans to swim in. However, this balance is so important to understand and measure regularly because if too much chlorine is added, it can quickly become harmful for not only the harmful bacteria that swim in the pool but also the people that use it.

Alkalinity Adjusting Chemicals For Pool Start Up

If your pools initial test shows an incorrect amount of alkalinity, then you need to add some chemicals to fix it. It doesnt matter if it was too high or too low, chemicals are going to be needed.

This should be the first chemical that you add to your pool during start-up. This one can really affect the pH level of your pool. Sorting this out first prevents you from ruining your hard work on your pools pH level by doing it afterward.

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Intex Pool Start Up Chemicals

Intex pools are small aboveground pools, but they still need startup or opening chemicals as any other pool. Perhaps you arent as concerned about staining and scaling as an inground pool owner, but you certainly want clean and clear water, without any signs of algae.

If you are starting with a freshly filled intex pool, consider screwing on a pre-filter to your garden hose before filling the pool, to remove excess solids and minerals, and reduce the workload for your pool filter.

Step 1 – Water Balance First! As usual, start by balancing pH, Alkalinity and Calcium Hardness levels to the chart above. Calcium is not as critical in a vinyl Intex pool, but maintaining a minimum level of 150 ppm is still a good idea. Your pool water pH level is best in the 7.2-7.5 range, and to hold the pH steady, the waters Alkalinity should be around 100 ppm. Intex pool chemicals startup would not be complete without cyanuric acid ), to protect your chlorine from the sun. Add 1 lb per 2500 gallons, to raise CYA levels to 40 ppm.

Step 2 Add Clarifier: Most Intex pool filter systems are decidedly small, and can use a helping hand. Swimming pool water clarifiers coagulate suspended material into larger clumps that are more easily filtered.

Step 5 Add Algaecide: Following label instructions for dosage, treat your Intex pool with a good quality pool algaecide, as a supplement to your chlorine treatment, to prevent algae growth.

To Increase The Pool By 1ppm Per 10000 Liters

How Much Chlorine do I Add to My Pool?

Liquid Bleach – The liquid bleach you see at the supermarkets typically contain a 6% chlorine concentration. To raise the pool chlorine levels by 1PPM per 10,000 liters, you would need to add 162ml by volume of bleach.

Trichlor – Trichlor has 90% available chlorine so a little bit goes a long way! To raise pool chlorine levels by 1PPM per 10,000 liters, you would only need to add 11g of trichlor!

Dichlor – Dichlor has lower available chlorine, around 80% so you would need a bit more to raise your pool chlorine levels by 1PPM per 10,000 liters. You would need to add 18g or 18ml by volume of dichlor to raise 1PPM per 10,000 liters.

Cal-Hypo – Different brands of cal-hypo have different concentrations so its a good idea to see exactly what the concentration is before measuring it out and dosing your pool.

  • 48% – You will need 20g by weight or 21ml by volume of cal-hypo 48% to raise your pool chlorine levels by 1PPM per 10,000 liters of water.
  • 56% – You will need 19g by weight or 19ml by volume of cal-hypo 56% to raise your pool chlorine levels by 1PPM per 10,000 liters of water.
  • 65% – You will need 16g by weight or 15ml by volume of cal-hypo 65% to raise your pool chlorine levels by 1PPM per 10,000 liters of water.
  • 75% – You will need 14g by weight or 13ml by volume of cal-hypo 73% to raise your pool chlorine levels by 1PPM per 10,000 liters of water.

Chlorine Type Required X Number of PPM needed X Volume of Pool


19g x 2 x 40,000 / 10,000

38g x 40,000 / 10,000

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The Number Of Hours You Use The Pool

The more swimming there is, the quicker the added chlorine degrades. For example, if you wear your swim cap& swimming goggles and get in the pool twice per week, you may need to add chlorine more often compared to someone who uses his or her pool once per week.

If your swimming pool is not used much, you need to check the quality of the pool water once per week. If you use the pool more than 2 days per week, you should check the water quality 2 3 times every week.

How To Shock A Swimming Pool

  • Find out the volume of your pool. This will give you an idea of how much shock you need. The general recommendation is to use 1 pound of cal hypo shock for every 10,000 gallons of pool water, and 10 ounces of sodium hypo with around 12.5% chlorine to sanitize your pool.
  • Make sure the pool water is at its normal level.
  • Make sure your pool’s pH is between 7.27.6 and its alkalinity is between 80120 ppm.
  • Prepare the treatment according to the instructions on the package. cal hypo will require that you dissolve it in water first, then add it to the pool. For sodium hypo, you can add it directly around your pool. If you need to dissolve the shock, fill a bucket with 5 gallons of warm water before adding.
  • For cal hypo, slowly add it to the water while gently stirring. Always add shock to the waternot the other way around. This makes it easier to dissolve.
  • Pour cal hypo evenly around your pool. If there is any undissolved shock left, add some pool water, mix gently, and pour it in the pool.
  • Run the filtration pump for at least 24 hours to clear the contaminants from the pool. Shocking alone will only kill germs and algae it won’t get rid of them.
  • If your pool is still green or cloudy, check that all your chemical levels are adjusted correctly, scrub and remove any visible debris, and make sure your filtration system is working properly.
  • What Is Free Chlorine?

    It is unbound chlorine that is “free” to sanitize.

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    The Importance Of Balanced Pool Water

    Balanced pool water is clean, safe, healthy, and comfortable to swim in. And it will prevent damage to your pools structure and equipment.

    Too much chlorine will cause skin and eye irritation, and potential illness, while too little will not be effective at killing bacteria, algae, and other contaminants.

    If pH levels are too high, the water will become cloudy and create scale deposits on your pool walls and equipment. And if the pH levels are too low, the pool surfaces and equipment will become etched and corroded.

    Simply put, unbalanced water can lead to plenty of unwanted issues with your pool. So do yourself and your pool a favour and keep your water balanced.

    First Things First: What Exactly Is Chlorine

    5 Basics of Cleaning a Chlorine Swimming Pool

    Chlorine is basically a household nameand for a reason. Its by far the most popular pool sanitizer, mainly because its both wildly effective and wildly inexpensive, a combination anyone should love. Its also exceptionally safe, as long as the dosage is right. Its even used for drinking water when dosed down. Basically, if youre in the ballpark of the right amount of chlorine for your pool, youll kill all the bacteria you need to and wont irritate your skin, eyes, and throat.

    Chlorine is a chemical compoundbut that doesnt mean you had to have aced high school chemistry class to understand it. The solid form of chlorine is sodium hypochlorite, and the liquid form is calcium hypochlorite. And despite popular misconception, you dont need a different type of chlorine for an above ground versus in-ground pool. Sound good? Lets move on.

    Interested in busting dirt and debris from your pool as well as well as microscopic bacteria? You should be. Try the Blue Torrent MyBot In-Ground Robotic Pool Cleaner: its the most economical, high performance pool cleaner on the marketand comes with a lifetime warranty. According to customer David Lain, Very pleased. My wife loves it.

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    How To Add Pool Chlorine To Your Pool

    Dont be tempted to just measure out your pool chlorine and dump it into the pool and be done with it! Theres an actual method to effectively adding your pool chlorine. What you do is that you take a bucket of pool water, dissolve the chlorine in it and broadcast it into your pool. This ensures two things:

    • The chlorine is properly dispersed all over your pool
    • You avoid undissolved chlorine from settling on one spot and causing corrosion to your pool surface

    If youre using chlorine in tablet form, be sure to use the appropriate chlorine feeding device and avoid the temptation of popping them into your skimmer baskets. Not only is adding chlorine directly on your skimmer baskets inefficient, but it can cause damage to your pumps and filters as well!

    Quick Dip: How To Shock Your Swimming Pool Using Liquid Chlorine

    Shocking your pool water is one of the keys to keeping your pool sparkling and ready to swim in. Failing to shock your pool water can lead to algae and bacteria build-up. This creates a swimming pool that is not only uninviting, but hazardous to pool patrons as well. Just because your water is clear, does not mean it is safe to swim in! This is why a high-quality pool testing set from LaMotte or Taylor is an essential part of every pool operators kit!

    Shocking a pool with liquid chlorine or a granular pool shock kills or inactivates pathogens and algae. Shocking will also oxidize other unwanted materials inhabiting the pool water. By raising the chlorine level in the pool to the correct level, and holding it there for the prescribed amount of time, this effectively disinfects the water. This article covers shocking your pool with two of the most popular shock products on the market today sodium hypochlorite and calcium hypochlorite .

    Preparing to Shock Your Pool

  • Know how many gallons of water your pool holds. Need assistance with this? Pentair has a handy online calculator that can tell you the volume of your pool.
  • Using your pool testing kit, check your current chlorine level. This is important if you are attempting to bring your chlorine level up to an exact level.
  • Choose your pool shock. Two of the most popular options we carry are
  • The Basic Method Shocking by Following the Label Instructions

    How to Superchlorinate your Pool with Liquid and Granular Chlorine

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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.

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    During Extended Periods Of Hot Weather

    How to add chlorine to your swimming pool

    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.

    Read Also: Raising Cyanuric Acid In Pools

    How Much Chlorine Should I Put In My Intex Pool

    With spring arriving quickly, many users are asking for help with new pools or starting up a pool after the off season. One of the biggest and most important questions is how much Chlorine to add to your water. The amount of Chlorine that should be added depends on the size of your pool and how many gallons of water it holds.

    The chart below should offer a good staring point for most users. It lists the size of your pool, the water capacity in gallons, and how many liquid ounces & cups that should be added to the water. Note that the calculations are approximate, and the number of Cups of Chlorine Bleach are rounded up because its better to have a little too much chlorine than not enough.

    Also remember that adding chlorine once is not enough. You must add it continuously, possibly each day. Its best to do so as part of daily and weekly maintenance routines.

    How Much Chlorine Does My Pool Need

    The only correct answer to this question only comes AFTER you test your pool chlorine levels with a test kit like the Water TechniX 7 in 1 Pool Test Strips. The reason for this is that there are a variety of factors that are affecting your pool waters chlorine levels and we cant just go Oh, Ill add X amount of chlorine every X number of days and that should be good. By knowing what our current free chlorine levels are, well know exactly how much chlorine we should be adding and eliminating guesswork altogether.

    So how much chlorine does the pool actually need? Ideally, youre aiming for your pool to have chlorine at around the 1ppm to 3ppm range. Here at Mr Pool Man, we like to keep it around the 2-3ppm range so that theres time for the pool chlorine to do its job in sanitising the pool before it gets eaten up by the Australian sun.

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