How much shock for 1500 gallon pool

As a rule of thumb, use 1.5 pounds (680 grams) of baking soda per 10,000 gallons (37,854 liters) of pool water. This should raise the alkalinity by about 10ppm (parts per million). Or you can use the chart below. If you're not sure how much water your pool holds, check out our pool calculator.

How much shock for 1500 gallon pool. You need to add enough bleach to raise the chlorine levels of your pool to 1 to 3 ppm. If you’re trying to shock your pool, then you will need to add 1/2 gallon per 10,000 gallons of pool water to raise it to 5 ppm. On the other hand, if you are just raising your chlorine levels, 1/4 gallon per 10,000 gallons will suffice.

That would be two pounds of pool shock per 10,000 gallons of water. Can I Just Drop Pool Shock Right In? As long as you have shock that doesn’t require pre …

Clean the pool before shocking, to remove leaves or debris. Lower the pH level to 7.2, to increase pool shock potency. Sprinkle shock into pool, or broadcast across the surface. Vinyl pools should pre-dissolve in a 5-gal bucket of water. Run the filter and brush the pool afterwards to disperse.Run your filter. Running your swimming pool filter will help distribute the shock evenly. Wait the appropriate amount of time before swimming. If you're using a chlorine-based shock treatment, you'll need to wait 12 to 24 hours before swimming. If you're using chlorine free MPS, you should wait at least 15 minutes.Finally, enter your desired alkalinity level (again, in mg/L or ppm), bearing in mind that a level of 80 - 120 ppm is generally recommended. How Much Sodium Bicarbonate Should I Add To My Pool? As an example, for a 50,000 L pool with a current alkalinity level of 40 ppm and a desired alkalinity level of 100 ppm, you would need to add 4.1 kg of ...How many gallons of water does a 12 in pipe 1500 feet long hold? 1,269,551.02 US gallons.Johanna Miller. Keep your pool crystal clear with three simple steps. Three types of chemicals -- chlorine, shock and algaecide -- are the basic chemicals used to maintain …You use one bag of shock for every 10,000 gallons So, I would suggest about 3/4 bag for your pool. If your initially shocking it, then go with twice that. So that would be a bag and a half.The amount of bleach required to sanitize a 10,000-gallon pool depends on the current levels of total chlorine and cyanuric acid. To maintain a healthy level, use 4-8 ounces per 5,000 gallons. Make sure you know the exact measurements of your pool before adding chlorine to it.19k gallon pool. I keep 4 tablets in the feeder at all times (~2 per week), run ~8-10 hours per day. I shock with 2 gallons of 12.5% as needed which is about every 2 weeks. 30-40 CYA depending on how far I'm into the season.

Calculating the Amount of Liquid Shock for a 15000 Gallon Pool Pool Volume Calculation. Calculating the volume of your pool is the first step in determining the appropriate amount of liquid shock to add. Accurate volume measurement ensures that you provide your pool with the necessary treatment without over or under-dosing. To calculate the ...Generally, the recommended amount of shock needed for a small pool is 1 lb. of shock per 10,000 gallons of water. Once you have determined the correct amount of shock needed, the next step is to add the shock directly into the pool water. For small pools, the best way to do this is by using a bucket of pool shock in one spot and then pouring it ...About This Item The HTH Super Green to Blue Advanced Shock is a 2-part system. Pack I shocks your pool with a boost of chlorine, helping you fend off bacteria. Pack II is a powerful flocculant that drops particles to the bottom of the pool for easy vacuuming. Both packs work together to create beautiful, crystal clear pool water within 24 hours.Mar 29, 2023 · Most chlorine packaging will tell you how much to use to raise your water by 1 ppm per 10,000 gallons, but here’s pretty much what you can expect: Type of granular chlorine. To raise 1 ppm per 10,000 gallons. Dichlor (55-62%) 2.4 oz by weight. Trichlor (90%) 1.5 oz by weight. Cal-hypo (48%) 2.8 oz by weight. Indices Commodities Currencies StocksThis tool will tell you what you need to do in order to correctly shock your pool. Please select the type of pool shock and your preferred sanitizer, and enter your pool's current free chlorine (FC) and cyanuric acid (CYA) / stabilizer levels below. After providing these details, click the 'Calculate!' button.For this example, let's say you have a 20,000 gallon pool and the pool pump has a GPM rating of 40. Grab your calculator to figure this out: 40 (GPM) X 60 (minutes per hour) = 2400 gallons per hour. 20,000 (gallons) / 2400 (gallons per hour) = 8.3 hours. In this case, the ideal pool filter pump run time is 8.3 hours per day for one circulation ...

If it doesn't, repeat the dosage and let stand for another 15 minutes before use. If the chlorine taste is too strong, pour the water from one clean container to another and let it stand for a few hours before use. ( source) Volume of Water. Amount of 6% Bleach to Add*. Amount of 8.25% Bleach to Add*. 1 quart/liter.May 1, 2018 · Pool Shock. Each 1 lb. bag of pool shock is capable of adding 8-9 ppm of free chlorine, per 10000 gallons. Calculate: 1 bag for each 10,000 gallons, per week or per month. Example: 2.5 bags per week for 20 weeks, or 50 lbs. Or 2.5 bags per month for 5 months, or 12.5 lbs. Pool Volume Calculator: How Much Water Is In Your Pool? Custom calculators to help you make smart decisions about your pool.As a rule of thumb, use 1.5 pounds (680 grams) of baking soda per 10,000 gallons (37,854 liters) of pool water. This should raise the alkalinity by about 10ppm (parts per million). Or you can use the chart below. If you’re not sure how much water your pool holds, check out our pool calculator.Pool Volume; Shock type: 5,000 gallons: 10,000 gallons: 15,000 gallons: 20,000 gallons: Di Chlor 56%: 2.1 lb: 4.25 lb: 6.4 lb: 8.5 lb: Cal-Hypo 65%: 1.8 lb: 3.63 lb: 5.45 lb: ... It has the current alkalinity reading down the left side (ppm CaCo3), the pool gallons along the top, and it gives the amount of acid needed in ounces or pints on the ...We would like to show you a description here but the site won't allow us.

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Pool water pH is one of the best measures of balanced water. The pH of a human tear is 7.5, so the ideal range for best swimmer comfort is between 7.4 - 7.6. But 7.2 - 7.8 is also considered an acceptable pool water range. Maintaining proper pH levels is essential for swimmer comfort, protection of pool equipment and effectiveness of the chlorine.Step 4. Leave it alone. Leave the chlorine shock in the pool water to do its work. The manufacturer's instructions are important here as well to make sure no one gets in the water too soon after treatment. It's usually recommended that you leave the chemicals in the pool overnight. Step 5.Measure spa adjustment chemicals carefully, using 1/8 cup (1 oz) or 1/4 cup (2 oz) kitchen measuring cups. Another useful tool, the kitchen tablespoon is 1/2 ounce, and the tablespoon is 1/6 ounce, or 0.17 oz. Add small amounts and test again after an hour or so of circulation. Keep a log book of chemical test strip readings and adjustment ...The general recommendation is to use one 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 7.2–7.6 and its alkalinity is between 80–120 ppm.

In this case, we already know that our pool holds 22000 gallons. The general rule of thumb for shocking a pool is to use one pound of shock per 10000 gallons of water. Therefore, if we divide our total gallon count of 22, 000 by 10, 000 then round up for safety measures, we get three pounds of shock necessary for effective results.Once you have tested the water, if the chlorine level is below the recommended range (typically between 1-3 ppm), you can add more chlorine. However, if it is too high, you should let the chlorine dissipate naturally or perform a partial drain/refill of the pool before adding any additional chemicals.So if you have a 20,000 gallon pool, you'll need to add 4 chlorine pucks ev... Did you know a 3-inch chlorine tablet will sanitize up to 5,000 gallons of water? So if you have a 20,000 gallon pool ...Sep 12, 2023 · For a 10,000-gallon pool with high pH, you might start with around 0.5 to 1 quart of muriatic acid. How much muriatic acid for a 50,000-gallon pool? For a 50,000-gallon pool, you might need approximately 2 to 4 quarts of muriatic acid to lower the pH. Always start with a smaller amount, test, and add more as needed. For optimal sanitation of your pool water, many manufacturers recommend adding 1 pound of chlorine per 15000 gallons.This means that for a 1500 gallon pool you should use at least 2 pounds (32 ounces) of stabilized granular chlorine each week.The basic chlorine to pool water balance is supposed to range between 1 to 3 PPM. To achieve this pool chemistry balance, you will need about 0.00013 ounces of chlorine per gallon of pool water. Different swimming pools feature varying sizes. Hence, you will need to perform some simple calculations to figure out the amount of chlorine you need ...How much Shock should I use? 1 gallon of liquid shock per 10,000 gallons of pool water. Watch the labeling and look for 12.5% sodium hypochlorite. Note that many stores sell 8-10% in order to cut the price. In other words it is a good deal for the store but a bad deal for the consumer. A 20,000 gallon pool would use 2 gallons. You can also use ...Mar 29, 2023 · Most chlorine packaging will tell you how much to use to raise your water by 1 ppm per 10,000 gallons, but here’s pretty much what you can expect: Type of granular chlorine. To raise 1 ppm per 10,000 gallons. Dichlor (55-62%) 2.4 oz by weight. Trichlor (90%) 1.5 oz by weight. Cal-hypo (48%) 2.8 oz by weight.

To double shock, you will need to add 2pounds for every 10,000 gallons of water. For instance, ifyou pool is 20,000 gallons, you will add 4pounds of shock. Green or Dark Green Pool Water: Thismeans there’s a medium amount of algae in your water and you’ll need to triple shock your pool.

How much shock for a 1000 gallon pool? Just 0.13 ounces or slightly more may be required for a 1000-gallon pool. Instead of Clorox, I advise using ordinary liquid chlorine bleach or sodium hypochlorite for daily shocking. Clorox can only kill algae since it contains a much of calcium hypochlorite. Without any issues, your pool can function …To determine how much shock is needed in a 1 40000 gallon pool, one should consider the current level of chlorine and any contaminants present. For a pool with little to no chlorine, up to 5 pounds of shock might be required. If the pool has moderate chlorine levels but still looks dirty or cloudy, around 3 pounds of shock are typically …Mar 17, 2023 · Most of the one-pound bags of shock raise the chlorine level in a 10,000-gallon pool by 5-10 ppm; 64 ounces (1/2 gallon) of liquid chlorine (at 10% chlorine) would raise the chlorine level in a 10,000-gallon pool by 5 ppm. We do recommend dissolving the granular shock products in a bucket before using them. Some granules can bleach or damage a ... If your pool is vinyl lined, only add 1L every 24 hours, as it's more sensitive to harsh chemicals. You also need to shock your pool with chlorine. Add 2 cups (400 grams) of granulated chlorine (not stabilised) or 3 tubs of 15L chlorine (as it's actually only 20% chlorine and the rest is water).How Much Chlorine Should Be Used In A 15000 Gallon Pool. You need to achieve and maintain chlorine readings, from a test kit, of between 1.5 and 3.0 pH readings of between 7.4 & 7.8 total alkalinity readings of between 80 & 120 for best water quality chemically. Filtration is another factor in water quality.Since 1 cubic foot (0.028 m 3) contains 7.48 gallons (28.3 L) of water, your pool holds 33,760 gallons (127,800 L) of water. ... To shock the pool, purchase a liquid or granular chlorine shocking treatment and follow the instructions to add it to the pool water. Wait until the free available chlorine levels drop below 5 ppm before you swim in ...Step 1: Determine your pool's volume. This is typically measured in gallons or liters, and can be calculated by multiplying the length, width, and average depth of your pool. Step 2: Determine the dosage required. This will depend on the concentration of the liquid shock you are using and the volume of your pool.

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There are 7.48 gallons of water in a cubic foot. Multiplying the surface area and average depth gives the total number of cubic feet in the pool. Multiplying the total number of cubic feet by 7.48 the number of gallons in a cubic foot, gives the total number of gallons in the pool. (Average Depth * Area) * 7.48 = Pool Gallons.The rule of thumb is to keep your free available chlorine levels between 2-10 ppm. Testing frequently will help ensure your pool's water stays crystal clear and free from harmful bacteria. To keep a close eye on your pool's water balance, use a reliable pool test kit. The best ones provide readings for total chlorine, free chlorine, pH ...150 grams of chlorine for 10,000 gallons of water. The amount of chlorine shock always depend on how much you want to raise your cholrine level for and the total amount of water in your pool. I ...If pool clarity problems began with an algae bloom, be sure to kill algae before clarifier treatment. This requires 10-30 ppm of chlorine, with a suitably low pH of around 7.2. Operate the filter 24 hours per day during treatment, or as long as possible each day and night to improve circulation and filtration.The ideal level for stabilizer is 30-50 ppm for chlorine pools and 60-80 ppm for saltwater pools. Hot tub CYA levels should be pretty low, around 30 ppm. If your cyanuric acid level is too low, your chlorine will burn up quickly in the sun. If it's too high, though, your chlorine won't be very effective (and too much stabilizer can damage a ...The basic chlorine to pool water balance is supposed to range between 1 to 3 PPM. To achieve this pool chemistry balance, you will need about 0.00013 ounces of chlorine per gallon of pool water. Different swimming pools feature varying sizes. Hence, you will need to perform some simple calculations to figure out the amount of chlorine …Shock Treatment Ratio (per 100 gallons) Example: 500 gallons; Clear: 0.005 ounces: 2.5 ounces of shock treatment: Slightly Cloudy: 0.01 ounces: 5 ounces of shock treatment: Very Cloudy: 0.015 ounces: ... Pool Mate Spa Shock (chlorine, pH neutral) Clorox Spa Blue (restores blue color)To shock your pool, use 2 pounds of shock for every 10,000 gallons of water, which should raise your chlorine to 10.0 ppm. Depending on your pool, you can use Leslie's Power Powder Plus or Leslie's Chlor Brite. After shocking the pool, run the circulation system for at least 2 hours before adding an algaecide.If your pool shock does indeed require pre-dissolving, fill a 5-gallon bucket about three-quarters of the way full with warm water. Add in the required amount of pool shock based on the size of your pool, but only add about one pound at a time to avoid clumps. Stir the mixture with a wooden stick until all of the pool shock has dissolved. 4) Work out how much bleach will be needed: For every 50 gallons of water in the well use one quart of laundry bleach - (4 quarts in a gallon). For laundry bleaches: 1 gallon is required for every 1000 gallons of water, and there are 1500 gallons of water in the well. Therefore, 1 ½ gallons of laundry. To find how many gallons you need, just enter the shape of your pool along with the width, length, and average depth - it's as easy as that. Here is sizing and gallon information for the most common types of pools. Above Ground Pools (48" Depth) If you don't see your pool size in this chart, use our volume calculator. ….

The amount of chlorine required per gallon of water depends on the type of chlorine used to treat the pool. A daily dosage of 11 ounces of liquid chlorine is recommended for every 10,000 gallons of water. A 10,000 gallon pool requires 6 to 8 ounces of granular chlorinator each day.Preparing to Shock a Spa or Hot Tub. The most important thing to do in preparation for shocking the spa water is to first test and adjust the pH level to the range of 7.2-7.6. Oxidizers work best in a low pH environment, and the efficacy of your spa shock is twice as great at a pH of 7.5 than it is at a pH of 8.0.How much super shock should I use? Often, it will look something like this. 12.5% Liquid Chlorine Pool Shock – Normal Dosage: 1 gallon of shock per 10,000 gallons of water. Shock Dosage: 2 gallons of shock per 10,000 gallons of water.A round ring pool, 48 inches tall and 15 feet across, holds 4,978 gallons. An in-ground pool can hold 31,000 gallons or more. To find the number of gallons in a pool, measure and multiply together the length, width and average depth, then multiply by 7.5 for a rectangular pool, 6.7 for an oval pool or 5.9 for a round pool.Pool Care and Cleaning ... How much shock to add to 15000 gallon pool? Wiki User. ∙ 2014-04-21 15:05:05. Add an answer. Want this question answered? Be notified when an answer is posted.Before you open up your pool for swim season, read our guide to the startup chemicals you'll need to have a sparkling, refreshing swimming pool. For more information, Visit SwimmingPool.com Toll Free: 888.476.7665Keep adding bleach tomorrow. Try to keep the chlorine in the dark yellow range on your test block. Tomorrow evening, after the sun is off the pool, test the chlorine level. Add enough bleach to get the chlorine level back up to around 12ppm. Wait an hour or two and then test the chlorine level again.For balanced pool water, keep the pH between pH of 7.4-7.6. And there are two different chemicals you can use to raise the pH in your pool: Baking Soda aka sodium bicarbonate (sold as Alkalinity Increaser in pool stores). Soda Ash aka sodium carbonate (sold as pH Increaser in pool stores). Note: Before you add any chemicals to your pool, make ... How much shock for 1500 gallon pool, If pool clarity problems began with an algae bloom, be sure to kill algae before clarifier treatment. This requires 10-30 ppm of chlorine, with a suitably low pH of around 7.2. Operate the filter 24 hours per day during treatment, or as long as possible each day and night to improve circulation and filtration., Cal hypo is a sanitizer, meaning it is one of the many chlorine types you can use to disinfect your pool. Most commercially sold cal hypo products contain anywhere between 65% and 75% chlorine in the mixture, which is more than enough to kill algae and bacteria in the water. For every 1 ppm of free chlorine (FC) in your pool, calcium ..., The exact amount you need to add depends on the size of your pool, the type of shock your using, and whether you’re shocking as part of regular pool maintenance, or treating an issue like algae. For general pool maintenance, add one pound of shock for every 10,000 gallons of water in your pool., Shock Dosage: 2 gallons of shock per 10,000 gallons of water. How much liquid chlorine should I put in my pool per gallon? The basic balance of chlorine to water is between 1 and 3 ppm, or 0.00013 ounces of chlorine per gallon of water., How to Shock a Pool. Step 1. Test the Water. Using a water test kit or test strips, ensure that all aspects of water chemistry are within the proper range. Use non-chlorine shock if your Free Available Chlorine level is between 2.0-4.0 ppm, and use a chlorine-based shock if levels are below 2.0 ppm. Step 2. Circulate the Water and Add Pool Shock, The amount of gallons of water in a pool varies greatly depending on the size of the pool. The average in-ground backyard pool holds between 18,000 and 20,000 gallons of water., The ideal salt level for a saltwater pool is 3,200 parts per million (ppm), but anywhere between 2,700 and 3,400 ppm is also acceptable. Anything below 2,700 ppm and the salt generator likely won’t be able to make enough chlorine to keep your water properly sanitized. Much more than 3,400 ppm and your water can become corrosive to metal., How much shock do I add to pool with algae? (1 bag) of shock per 10,000 gallons of pool water. That may be fine for normal conditions, but if you have a severe algae attack, a triple shock is needed. 1 bag will get reach 7-9 ppm, but for 30 ppm, you need 3, 4 or sometimes even 5+ lbs per 10,000 gallons of pool water., Jan 8, 2022 · How Many Gallons Of Chlorine Bleach Do I Add To 3800 Gallon Pool. Answer#1One gallon of standard 5.25% sodium hypochlorite liquid bleach. In a clean pool, this should bring the chlorine level to 3-5ppm. If it’s murky, add 6 gallons to “shock” the pool. Then wait for the levels to fall. , For 20000 gallon pools, the amount of shock needed for proper maintenance depends on several factors, like the size of the pool and water chemistry levels. In general, most experts recommend using 5 lbs (2.26kg) to 10 lbs (4.53 kg) of pool shock per 10,000 gallons (37 854 liters) of water regularly each week in order to keep your 20000-gallon pool safe …, Step 1: Determine your pool’s volume. This is typically measured in gallons or liters, and can be calculated by multiplying the length, width, and average depth of your pool. Step 2: Determine the dosage required. This will depend on the concentration of the liquid shock you are using and the volume of your pool., Pool Heater Time Calculator. A Swimming Pool Chemical Calculator. Adjust sliders to calculate the time needed to heat the pool. Pool Gallons: 14000. 100. 20000. Click for pools over 20k gallons. Current Temp: 80. 40., Experts recommend using one pound of shock per 10, 000 gallons of water, so for a 500-gallon pool, you would need approximately 0.05 pounds or two ounces of shock treatment. “It’s important not to over-shock your pool, “ says expert Michael Rathburn from Swim University. “Too much chlorine can irritate swimmers’ skin and eyes.”., Important SAFETY Rules To Follow When Balancing Pool Water. RULE #1: Always read product label and follow instructions. RULE #2: Never mix chemicals (including different types of chlorine). RULE #3: Never add water to chemical, always add chemical to water. This article is a user manual for our pool water balance calculator seen above. It will also teach you what you need to know about proper ..., As a general rule, add 13 ounces of cyanuric acid to gain 10 ppm of CYA in a 10,000-gallon pool. Remember, your CYA should be between 30 and 50 ppm. Pour the contents of the bucket directly into your skimmer. Run your pool pump for at least a few hours after. Letting the pump helps mix the solution into your pool., May 5, 2013. #4. Re: CYA = 122 How Much Bleach To Shock a 28,000 Gallon Pool. Unless your pool is in the middle of an obvious swamp you can always pump out 18" safely. If need be you can do that several times. This is a slightly less efficient use of water, i.e. uses more water, but otherwise works just fine., To determine how much shock is needed in a 1 40000 gallon pool, one should consider the current level of chlorine and any contaminants present. For a pool with little to no chlorine, up to 5 pounds of shock might be required. If the pool has moderate chlorine levels but still looks dirty or cloudy, around 3 pounds of shock are typically …, How Much Bleach to Use. When it comes to how much liquid chlorine to shock a pool, we recommend using one to two gallons of 12.5% chlorine per 10,000 gallons of water to properly shock your pool. Store-bought bleach is much weaker in chlorine concentration, though—typically around 6%—so, you’ll need to use double that …, Turn off your pool pump and wait until the water stops moving completely. Calculate how much muriatic acid you need to add to your water. As a general rule, it takes 25.6 ounces of full-strength muriatic acid to reduce the alkalinity in a 10,000-gallon pool by 10 ppm. Pour the muriatic acid into the deepest part of your pool., Use a pound of shock for every 15,000 gallons of pool water. Depending on the severity of the algae, you will likely have to shock twice, if not three times. Wait 12 …, The recommended dosage for pool shock is usually listed on the product label, and is typically based on the volume of the pool in gallons. For example, if the recommended dosage for a standard-sized pool is 1 pound of shock per 10,000 gallons of water, you would need 2 pounds of shock for a 20,000 gallon pool., Indices Commodities Currencies Stocks, Here is the chart that you have to use for shock treatment based on the color of the pool. For light green pools, use 1 lb. of shock treatment per 10,000 gallons of water. So, for 25,000 gallons of water in pool, use 2.5 lb. of shock treatment. For medium green pools, use 2 lb. of shock treatment per 10,000 gallons of water., It measures the acidity or alkalinity of the water on a scale from 0 to 14, with 7 being neutral. For a swimming pool, the ideal pH level is between 7.2 and 7.8. When the pH level is too high or too low, it can cause a variety of problems with the water chemistry and equipment., A pool adds ambiance and fun to a backyard, but at what price? Learn more about what goes into pricing as we cover how much does an inground pool cost. Expert Advice On Improving Y..., How Much Bleach to Use. When it comes to how much liquid chlorine to shock a pool, we recommend using one to two gallons of 12.5% chlorine per 10,000 gallons of water to properly shock your pool. Store-bought bleach is much weaker in chlorine concentration, though—typically around 6%—so, you'll need to use double that amount., Feb 27, 2007 · Something is not right about that. 3 fluid ounces (that's 6 tablespoons) of 6% bleach in 300 gallons should raise the FC by 4.8 ppm (about 5 ppm). , Once the pool is full it's unlikely to have much (if any) chlorine. That's why it's recommended to use a "shock" or starter dose once you have your pool up. This will help prevent algae and bacteria from the get-go. You should allow 50g of chlorine granules per 1000 gallons. In a clean, freshly filled 500 gallon wading pool, add a quarter ..., If your kids have a tendency to roll out of bed at night (as my 9-year-old son sometimes does) you can add bumpers to each side of the bed to make it more difficult for them to rol..., When the levels drop below 50 ppm, add 250 ml (1 cup) of hydrogen peroxide per 2000 liters (500 gallons) of water. To maintain a clean, sparkling pool, keep your hydrogen peroxide levels between 50 - 90 ppm. Run the pump every night according to your manufacturer's instructions and change out the filter about every two weeks., Use 50 to 100 PPM chart only if you are doing shock chlorination for new or heavily contaminated storage tanks. Storage tanks: Disinfecting with liquid household bleach (5.25% Sodium Hypochlorite) Step 4: Use Bleach. If using pool chlorine (12% sodium hypochlorite) use half the amounts below. Storage Tank Gallons., To determine how much shock is needed in a 1 40000 gallon pool, one should consider the current level of chlorine and any contaminants present. For a pool with little to no chlorine, up to 5 pounds of shock might be required. If the pool has moderate chlorine levels but still looks dirty or cloudy, around 3 pounds of shock are typically enough., Take a bucket, usually about a five-gallon bucket, and fill it 3/4 of the way with pool water. Then add in one bag of calcium hypochlorite. Once the bag is in, you can then move to the next step. Make sure that you only put one bag at a time into the bucket.