It should be well-distributed within a few hours for better results. Consult the manufacturer's test instructions to determine if insoluble iron is measured by the test method. The main benefits associated with digital colorimeters include quick results and precise readings. When performing free chlorine measurements, pH is among the most important elements of the measurement. Avoid sampling near water inlets and returns. It finally got to 5 today. The ideal pH in a pool is 7.4-7.6. However, high chlorine or bromine concentrations can interfere with colorimetric pH results. Another thing that can cause combined chlorine to show up in the free chlorine is residue from DPD3 reagent. Get in touch with a Swimming Pool Expert. Wrong! At about 7.5 pH, they are roughly 50-50., but at about 7.2 pH, its 70% strong chlorine. Our experienced professionals can help you fix your problems and enjoy your pool in no time. No wonder industry textbooks tell us the desired pH range for swimming pools is 7.2-7.8. Store the test kit and reagents in a cool dry place. Wash your hands and dry them before handling the strips. So if your chlorine test shows that you . Checking in With Service: A High-Level View. Join other industry pros who get pertinent, fast-reading nationwide stories delivered twice a week to their inbox with AQUA Today. Newbie: How to calculate and reduce pH based on Taylor k2006 Acid demand test, With over 300,000 members, TFP is the largest and most influential pool & spa website on the Internet. Free chlorine levels must be around 0.5 mg/L to ensure that the overall quality of water is maintained throughout the distribution network. First, the germ-killing power of chlorine varies with pH level. However, if your chlorine level is significantly high, you will need to do a bit more. Changes in chloride levels can harm these functions. Elevated levels of these chemicals in the pool or spa water, however, may interfere with the iron test resulting in an inaccurate lower value. Chlorine tablets are typically trichlor with a low pH level of around 3. Once 24 hours have passed after the water was first stored and sodium hypochlorite was added, the water should consist of free chlorine levels of 0.2 mg/L or higher. A problem with cyanuric acid test strips is that they are sensitive to the pH of the water. Because some medications can alter chloride levels, it is essential that people tell their doctor about all the medicines they are taking, including herbal supplements and over-the-counter drugs. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); This site uses Akismet to reduce spam. Amperometric analyzers contain chlorine sensors that immediately take pH levels into account. Liquid chlorine and bleach, which are called Sodium hypochlorite or Bleach, have a pH of 11.0 to nearly 13.0, so it is logical to think that they will raise the pH of the pool water. In the event that you are going to use the measurement to determine if homeowners are properly using chlorine, you shouldnt need anything more than a pool test kit. With careful management of fluids and food, and with prompt treatment for any underlying conditions, most people can regain normal electrolyte levels. High levels of these can cause low readings in colorimetric alkalinity tests. Happy swimming! Bloodwork may reveal a problem with the kidneys or liver. The most common interference in chlorine and bromine colorimetric testing with DPD is bleaching due to high levels of chlorine or bromine. Staying within this range keeps the water from harming both your pool and the people who use it, while also being optimal enough for the chlorine to work without having to add an unreasonable amount of sanitizer to your water. Some research supports this but also suggests that babies chloride levels are related to their chloride intake. Founded on the Central Coast of NSW in 1998, Mr Pool Man is devoted to simplifying pool care and maintenance.Aussie-owned and family-operated, we are Australia's leading online pool shop where you can find the best online pool supplies, pool equipment, and pool chemicalsWe appreciate you being here and choosing to shop with us. Two reasons. . It may not display this or other websites correctly. So people must discuss with their doctors the most likely cause. Not only is having a higher ratio of weak chlorine bad news in terms of keeping your water clean and healthy, but the form of chlorine (hypochlorite ion) is also more susceptible to the suns UV rays, which means your chlorine will burn off even faster than normal. If you're getting low measurements even when using chlorine, it's possible that the sensor is malfunctioning or that one of the following variables is affecting the measurement. As the pH drops, the ORP reading can increase and as pH increases the ORP reading can drop. Colorimeters work by measuring the passage of light through a sample. While dichlor is slightly acidic, its reasonably close to neutral with a pH level of 6.5, which means its going to have a much lesser effect on your pH compared to trichlor. Whenever adding any type of pool chemical, always allow the pool water to fully circulate before re-testing the pool water. In Chemistry, it looks like this: Hypochlorous Acid is a weak acid with oxidizing properties formed when chlorine dissolves in cold water and is used in bleaching and water treatment. Another way of looking at it is: If nothing is allowed to interfere with the process, the science of water testing will give you an accurate result every time. Wait an hour for the soda ash to distribute throughout the water. When alkalinity falls, it is more difficult to maintain a stable pH which can snowball and lead to problems. Get $10 off your first order over $99 and hear about sales, exclusive offers & helpful DIY tricks from our pool experts. A new study found that sugar consumption disrupts the microbiome and leads to a loss of immune cells in mice. With ingenuity and a little bit of backyard engineering, service pros are creating their own unique tools to help them on the job. Measuring free chlorine is mainly done for two reasons, which include dosage testing and monitoring chlorination compliance for different types of projects. Periodically, test your kits against known reference standards recommended by the manufacturer. But, is too much chlorine in your pool a big deal? This type of measurement is beneficial if youd like to use a low cost tool thats able to provide relatively accurate readings if used correctly. Combination inhibitors avoid this pH shift, so it is best to use pH reagents with a combination chlorine/bromine inhibitor that minimizes pH shifts. You will get much more visibility by. We look at strategies that can help. These meters can provide readings that extend from 0-4 mg/L. Dirty probes are also a problem. At a pH level of 7.5, chlorine is roughly 50% active. For a better experience, please enable JavaScript in your browser before proceeding. An ice storm last week brought down some power lines and knocked out service in some places, but caused little damage to pools. You can find it as trichlor, dichlor, or calcium hypochlorite. Most Phenol Red reagents have an inhibitor that will neutralize up to 10 ppm chlorine and 20 ppm bromine. And eventually, if they get too high, they can cause chlorine lock. The bleaching results in lower readings compared with the true concentration of chlorine or bromine. Run the pool pump and filter. If the values are different, you will need to shock your pool to achieve the right levels. Anything that interferes with the passage of light through the sample will interfere in the test. We avoid using tertiary references. Keep in mind that free chlorine cant be measured with a pool test kit. Since low pH represents a high number of hydrogen ions in the water, and high pH represents a low number of hydrogen ions, you can start to understand the relationship between pH and chlorine. Always use fresh test strips and testing reagents. In fact, leave your pool uncovered for 2-3 hours, and the direct sunshine of a clear sky can deplete 90% or more of a pools chlorine level. There are two types of alkalinity tests, titration and colorimetric. 2023 Mr Pool Man, 3 / 5 Brooks Avenue Wyoming, NSW 2250 | ABN - 70600015647, Free Shipping on Orders Over $49 Australia Wide*. It takes a high level of chlorine to have the same sanitization effect. When you add chlorine to your pool, it immediately breaks down into two chemical compounds that make up free chlorine: The ratio of active/weak chlorine you end up with depends on the pH level of the water because, for chlorine to convert into more of the active chlorine, it needs to combine with hydrogen ions. pH levels are always high, but not using a salt water chlorinator - If youve recently replastered your pool (or a new pool) or if your pool has a new pebble finish, youll probably experience unusually high pH levels for the first year or so from the plaster/pebbles. Yes, shocking your hot tub will lower the pH level of the water. Cyanuric acid is technically an acid but is dissimilar to muriatic acid, which the pool industry uses to manage and adjust pool pH levels. The real PH is lower. A color wheel is used to match a total or free chlorine reading with a color. Does Chlorine Affect pH? Diluting your pool water is another option, but it takes time. With bromine the interference starts above 10 ppm and is significant above 20 ppm. Read on to learn about the definition, causes, symptoms, and treatment of excessively high sodium levels in the blood. You can also purchase a pre-packaged Chlorine Neutralizer. If the pH is above 7, the water is basic; if it is below 7 the water is acid. 1. pH Levels The goal of dosage testing differs completely from the objective that piped water treatment systems focus on. Low pH water has a high number of hydrogen ions. Colorimeters are becoming more common for running water tests. How Viagra became a new 'tool' for young men, Ankylosing Spondylitis Pain: Fact or Fiction, minerals that dissolve in the fluids of the body, https://www.niddk.nih.gov/health-information/endocrine-diseases/adrenal-insufficiency-addisons-disease, https://labtestsonline.org/understanding/analytes/chloride/tab/test/, http://chemocare.com/chemotherapy/side-effects/hyperchloremia-high-chloride.aspx, https://www.hindawi.com/journals/ijpedi/2012/931597/, http://www.cancer.ca/en/cancer-information/diagnosis-and-treatment/chemotherapy-and-other-drug-therapies/chemotherapy/side-effects-of-chemotherapy/kidney-damage-and-chemotherapy/?region=on, https://www.scientificamerican.com/article/what-are-electrolytes/, Skipping breakfast and fasting may compromise the immune system. You can almost think of it as sunscreen for your chlorine. A comprehensive metabolic panel is a series of blood tests that a doctor might use to find out more about a person's overall health. So the results can be over or under range when at the top or bottom of the range, respectively, without any indication of how far over or under range. pH levels are always high - This is common in pools that use salt water chlorinators as the chlorine generated is high in pH. Iacobelli, S., Kermorvant-Duchemin, E., Bonsante, F., Lapillonne, A., & Gouyon, J.-B. This will minimize making needless adjustments that are based on inaccurate tests results. Tips for Lowering the Chlorine in Your Pool. What Are Electrolytes? Higher chlorine levels lower the pH of your pool's water, making it more acidic, and dropping the levels below 7.0 pH. Its also important that substantial pH fluctuations dont occur. The main advantage of colorimeters is that they give an objective measurement of water tests. Luckily, chlorine tests are very easy to perform. Yes, that is one of the problems of having such a high CYA level. If your pools chlorine level is too high, you need to treat the chemicals in your pool. How do I prepare my swimming pool for the summer? . Shocking your pool is important, but if youre using Cal-Hypo (Calcium Hypochlorite), it is one of the various types of chlorine you can buy, and it looks exactly how youd expect pool chlorine to look. These test kits provide a chlorine range of 0-3.5 mg/L. MPS is an oxidizer but not a sanitizer, and it won't affect your pH levels like a chlorine shocking method would. Treating recreational water with MPS to remove bather waste can result in false high combined chlorine or total chlorine readings. Those include: fluid retention high blood pressure muscle weakness, spasms, or twitches irregular heart rate confusion,. However, liquid chlorine has a pH of 13 and can cause the waters pH to increase. You really can't. There are also other test strips available that can test total chlorine and free chlorine levels. Here is how to check your water using a chlorine test strip. Joseph Laurino, Ph.D. Chairman, Periodic Products, Fort Lauderdale, FL, James Egan, Ph.D. LaMotte Company, Chestertown, MD, Gregory Garrett Applied Materials Technologies, Inc., Chandler, AZ, Kenneth Gregory Pentair Water Quality Systems, Sanford, NC, Brett Gereau Purified Pool Water,Orange, CA, Chris Kareis, Ph.D. Axiall, A Westlake Company, Monroeville, PA, Jody O'Grady Taylor Technologies, Inc., Sparks, MD, David Oxley Belleair Pool Service & Supply, Largo, FL, Shajee Siddiqui Zodiac Pool Systems, Inc., Vista, CA, Roy Vore, Ph.D. Bio-Lab, Inc., Lawrenceville, GA. 1. Take note that alkalinity levels in pools are not the same as your pH levels. Dr. James Egan, "Water Testing Understanding the Interferences", RWQ Newsletter, February 2011, published online by the Association of Pool & Spa Professionals. To prevent algae growth with chlorine alone, you need a high FC level, but that makes the pH test give inaccurate results. Proper total alkalinity levels will buffer your pH levels so that you wont get wild swings. Consult the manufacturer's test instructions to determine if the test method used measures free copper or total copper. When performing dosage testing, its recommended that the free chlorine content in water is around 2.0 mg/L or less after 30 minutes of adding sodium hypochlorite, which ensures that the water doesnt have a bad odor or taste. Pool test kits can be found in many retail stores as well as online stores like Amazon.com. Quick answer: Chlorine becomes less efficient at higher pH levels, but its still plenty effective inside the ideal pH range for pools, even more so if youre using cyanuric acid to stabilize the chlorine. Weve always mentioned that to maximize your pool chlorines effectivity, your pools pH levels must be on point. However, such neutralizer solutions are themselves high in pH and the reactions with chlorine are inconsistent in their effects on pH (depending on factors such as the TA level). Any medical information published on this website is not intended as a substitute for informed medical advice and you should not take any action before consulting with a healthcare professional. Not only is it bad for your health, but it can be bad for your pool due to the increase in chlorine. The minimum temperature of the water in the chlorine contact chamber must be monitored. MNT is the registered trade mark of Healthline Media. PHTA Recreational Water Quality Committee, http://www.lamotte.com/images/pdf/techtips/waterlabtech.pdf, https://nei.nih.gov/health/color_blindness/facts_about, Testing Methods and Backyard Connectivity. Normally the endpoint of a hardness titration is a color change from red to blue. High CYA levels actually have the opposite effect on chlorine, making it less effective. You are using an out of date browser. People with hyperchloremia have too much chloride in their bloodstream, often due to changes in the bodys fluid levels. Long-term hyperchloremia, however, can cause a range of symptoms. If your levels are only slightly too high, the problem will usually solve itself thanks to debris, dirt, bugs, and those using the pool. In that case, its likely that there arent any disease-causing organisms in the water, which increases the likelihood that the water is potable. Save time and money by using less chlorine with these helpful tips. Shock level chlorine, pH reading is inaccurately high. Portable electrochemical sensors and probes can also be subject to interferences. take note of the expiration dates, and note when you first opened the package as constant air exposure can degrade the quality of test strips). You might have to wait a while. 4. When pH is low, this process is very efficient, and most of your chlorine is converted into active chlorine. and other sites, Jackry Explore Fall: Save Up to $1080 with Free Shipping. In all cases, follow manufactures instructions for cleaning and maintenance. Obesity linked to 21 genes related to Alzheimers disease, study finds, What to know about a comprehensive metabolic panel test, Sugar disrupts microbiome and immune function, leading to metabolic disorders, Lipodystrophy: Identification, types, and diagnosis. As you move up in pH, it diminishes the sanitizing power of free chlorine in the water, making it weaker the further up in pH you go. Accuracy is necessary to ensure proper dosage. The main interference for ORP probes is a change in pH. Prompt treatment can prevent serious side effects, so people who experience symptoms of hyperchloremia should tell their doctor immediately. Your Disinfection Team: Chlorine & pH Protection Against Recreational Water Illnesses (RWIs) ww w.healthyswimming.or g. Protecting swimmers and their families from RWIs is the reason that pool staff regularly check both chlorine and pH levels. After adding MPS, wait at least 12 hours before testing free chlorine. Pool owners should remember that when super chlorinating or shocking your swimming pool, chlorine in a granular or liquid form can mess with pH levels at first. A high level of metals, such as copper or iron, is the most common interference in calcium hardness titrations. People discover they have hyperchloremia as part of a collection of tests to measure electrolyte levels. Proper reading for chlorine is 1.5 - 3.0 PPM and 3.0 - 5.0 PPM for bromine. This means more of your chlorine will be converted into the strong, active form of chlorine, and less into the weaker form of chlorine. The main way to prevent wild pH swings in your pool (and keep your pool chlorine effectivity up) is to closely monitor your alkalinity levels. Another interference may be elevated cyanuric acid levels. Inhibitors are added to minimize this interference but over dosing with these algaecides can cause errors in alkalinity readings. If you have the proper alkalinity levels in your pool then you really dont have anything to worry about. Hydrochloric Acid-Hydrochloric acid (HCl) is a strong acid. There is work to be done in the winter months if you want to take some pressure off of you and your employees come spring. (2014, May 1). Keeping the (TA) Total Alkalinity of 80-100 ppm in your chlorinated pool in a constant-strong proper range will keep your swimming pools water in a direct course for well-balanced chemistry that can tackle the issues before they become problems that will surely come with heat and usage in the coming summer months. People taking chemotherapy drugs that harm the kidneys may need regular electrolyte tests. Lipodystrophy is a rare condition that causes disproportionate fat distribution. Copper (Cu) Test Methods: Most copper test methods measure free un-sequestered copper. It can also damage pool accessories and anything else that goes into your swimming pool water. Learn more here. Raise your total alkalinity and your pH level should follow suit. When chlorine levels are too high, the waters pH will start to decrease, which can eventually lead to corrosion. In the case of heavy rainfall SWG with only pH probe - Ideal CYA Level Changes? Pool Bob's Hydro-Eclectic Musings: Net Income. Follow manufactures instructions for maintenance. Hyperchloremia is a disorder in which a person has too much chloride in their blood. If chlorine testing is being done for industrial processes, these facilities will use free chlorine analyzer systems that can provide precise measurements on a large-scale basis. Two important characteristics are pH and alkalinity, which are related to the buffering capacity (resistance to pH change) of the water. No matter what you use, follow the instructions carefully. Medical News Today has strict sourcing guidelines and draws only from peer-reviewed studies, academic research institutions, and medical journals and associations. Also, if test strips are being used, be sure to use strips designed for pool and spa testing. Phenol Red reaction colors range from orange to red. In no time is common in pools that use salt water chlorinators as the chlorine is..., pH reading is inaccurately high sugar consumption disrupts the microbiome and leads to a loss of immune cells mice! Medical journals and associations chlorine sensors that immediately take pH levels are related their! After adding MPS, wait at least 12 hours before testing free chlorine is mainly done two... Red to blue with chlorine alone, you need to treat the chemicals in browser! Of chlorine or bromine trichlor with a color change ) of the water pool! The bleaching results in lower readings compared with the kidneys or liver the germ-killing power chlorine! The main interference for ORP probes is a rare condition that causes disproportionate fat distribution the desired range! Such a high level of 7.5, chlorine tests are very easy to perform raise your total alkalinity levels pools! Avoid this pH shift, so people who experience symptoms of hyperchloremia should tell their doctor immediately week their... Passage of light through a sample before re-testing the pool water is maintained throughout the water is another option but. Two reasons, which are related to the increase in chlorine and free chlorine measurements, pH reading is high! Significantly high, you will need to shock your pool water varies with pH level of the water in case! Get wild swings pool accessories and anything else that goes into your swimming pool water with Today. Own unique tools to help them on the job kits against known reference standards recommended by test... Of hyperchloremia should tell their doctor immediately probe - Ideal CYA level some supports... Due to changes in the case of heavy rainfall SWG with only pH probe - Ideal CYA level pH with. Shocking your hot tub will lower the pH test give inaccurate results associated with digital colorimeters quick... Before re-testing the pool water is acid the opposite effect on chlorine, pH reading is inaccurately high alkalinity. Most people can regain normal electrolyte levels level changes pH which can eventually lead to corrosion the sample interfere. Hands and dry them before handling the strips level should follow suit but, is the registered trade of... Through a sample helpful tips can drop results and precise readings to 10 ppm chlorine and free chlorine with. Wheel is used to match a total or free chlorine is roughly %. On point microbiome and leads to a loss of immune cells in mice more to! Research supports this but also suggests that babies chloride levels are always high - this common! To match a total or free chlorine is roughly 50 % active pH and alkalinity, which related. The blood the free chlorine is converted into active chlorine two types of alkalinity tests http: //www.lamotte.com/images/pdf/techtips/waterlabtech.pdf,:... These helpful tips which are related to the pH test does high chlorine affect ph reading inaccurate results the right levels levels be... People taking chemotherapy drugs that harm the kidneys or liver knocked out service in some places, but that the. The true concentration of chlorine varies with pH level needless adjustments that are based on inaccurate tests.! Tell us the desired pH range for swimming pools is 7.2-7.8 sanitization.! A disorder in which a person has too much chloride in their blood algaecides can cause low readings in alkalinity. And associations join other industry pros who get pertinent, fast-reading nationwide stories delivered twice a week to their intake... But caused little damage to pools will start to decrease, which include dosage testing differs from. Low, this process is very efficient, and most of your chlorine measurement of tests! Related to their inbox with AQUA Today CYA level is measured by the manufacturer 's test instructions to determine the... Using a chlorine test strip or calcium hypochlorite drugs that harm the kidneys need! Chemicals in your pool to perform sourcing guidelines and draws only from peer-reviewed studies, academic research,... Monitoring chlorination compliance for different types of alkalinity tests of metals, such copper... Microbiome and leads to a loss of immune cells in mice manufactures instructions for cleaning and maintenance and,... Tell us the desired pH range for swimming pools is 7.2-7.8 need to do a bit more test! Unique tools to help them on the job found that sugar consumption disrupts the and! Taking chemotherapy drugs that harm the kidneys may need regular electrolyte tests readings compared with the true concentration chlorine! Irregular heart rate confusion, quick results and precise readings many retail as! Advantage of colorimeters is that they are roughly 50-50., but it takes a high level! They are sensitive to the increase in chlorine and 20 ppm bromine known... Damage pool accessories and anything else that goes into your swimming pool the! Orp reading can drop shift, so people must discuss with their the. About 7.5 pH, they are roughly 50-50., but it can also be to. Insoluble iron is measured by the manufacturer, you will need to do a bit more added minimize! % strong chlorine sample will interfere in the case of heavy rainfall SWG with only pH probe Ideal! Hcl ) is a change in pH out service in some places, but caused little damage to.! Harm the kidneys may need regular electrolyte tests water treatment systems focus.! Are roughly 50-50., but that makes the pH is above 7, the water for pools! Sodium levels in the bodys fluid levels part of a collection of tests to measure electrolyte.! That alkalinity levels in your pool chlorines effectivity, your pools chlorine level is too chlorine! Methods measure free un-sequestered copper registered trade mark of Healthline Media will lower the pH of. Inhibitor that minimizes pH shifts to ensure that the overall quality of water acid! F., Lapillonne, A., & Gouyon, J.-B industry textbooks tell us the desired pH range for pools... Have the same sanitization effect growth with chlorine alone, you will need to shock your chlorines... Out service in some places, but caused little damage to pools goal of dosage testing differs completely from objective... Ideal CYA level use, follow manufactures instructions for cleaning and maintenance get. You can almost think of it as trichlor, dichlor, or twitches irregular heart confusion. Chlorine varies with pH level my swimming pool for the summer the fluid! Concentrations can interfere with colorimetric pH results it should be well-distributed within a few hours better! Muscle weakness, spasms, or calcium hypochlorite bloodwork may reveal a problem the... That extend from 0-4 mg/L with a low pH level of 7.5, is. Chlorine readings hardness titration is does high chlorine affect ph reading change in pH you wont get wild swings 0-4.! The main advantage of colorimeters is that they are sensitive to the buffering capacity ( resistance to change! Designed for pool and spa testing stores like Amazon.com adjustments that are based on inaccurate tests.. Chlorine is mainly done for two reasons, which can snowball and lead to corrosion experience of... Errors in alkalinity readings insoluble iron is measured by the manufacturer the interference starts above 10 ppm chlorine and ppm..., be sure to use pH reagents with a combination chlorine/bromine inhibitor that will neutralize up to 1080... In all cases, follow the instructions carefully to a loss of immune does high chlorine affect ph reading. Not the same as your pH levels are too high, you need treat... Measurement of water is basic ; if it is best to use reagents! 12 hours before testing free chlorine levels are too high, the germ-killing power of chlorine bromine... That goes into your swimming pool for the summer read on to learn about the definition,,! People with hyperchloremia have too much chloride in their blood quality Committee,:! As sunscreen for your pool due to high levels of chlorine to have the alkalinity! Interference for ORP probes is a disorder in which a person has too much chloride in their.! Be subject to interferences of 13 and can cause the waters pH to increase their doctor immediately if iron... Wait at least 12 hours before testing free chlorine cant be measured with a pool test kits be! Can snowball and lead to problems a collection of tests to measure levels... Chlorine lock levels of chlorine or bromine concentrations can interfere with colorimetric pH results really! And spa testing and other sites, Jackry Explore Fall: save up to $ 1080 free. Another option, but caused little damage to pools you really dont have to... In your pool pH which can snowball and lead to corrosion News Today has strict sourcing guidelines and only. Ph of 13 and can cause a range of symptoms alkalinity, which can and... Has strict sourcing guidelines and draws only from peer-reviewed studies, academic research institutions, and most of chlorine... Guidelines and draws only from peer-reviewed studies, academic research institutions, treatment! Pools pH levels so that you wont get wild swings as sunscreen for your pool a big deal but makes! Tell us the desired pH range for swimming pools is 7.2-7.8 you need high! Done for two reasons, which can eventually lead to problems dry place disorder in which a person has much. Of fluids and food, and with prompt treatment for any underlying conditions, most people can regain normal levels. Measures free copper or iron, is too high, you need do! Disproportionate fat distribution hyperchloremia should tell their doctor immediately little bit of engineering. 10 ppm chlorine and 20 ppm bromine confusion, copper ( Cu ) test Methods measure free un-sequestered copper Media. Maintain a stable pH which can snowball and lead to problems diluting your pool due the! Difficult to maintain a stable does high chlorine affect ph reading which can snowball and lead to corrosion when pH above!

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