A guideline for adding chlorine to a pond is 1 tablespoon per 25 gallons of water. In a lake or a river, that ammonia is diluted, but in a small pond, levels can quickly build up and kill all the fish. These chemicals are commonly used to help disinfect drinking water and while they may not cause any issues for us in the short term, the fact is they are deadly to pond fish. Not only, Sloping the sides of your pond instead of digging straight sides (up & down). A number of commercially available compounds quickly and safely remove chlorine from water. Place the correct amount of algaecide in your pond according to manufacturer's directions. Here are example chlorine levels and what they can do to pond fish: 006 mg/L will kill fish fry in about two days. 0000037900 00000 n Koi fish are native to Japan and China, where they are commonly kept in ponds or lakes with high levels of chlorine. The good news is that you can use tap water in your pond but you will first need to take the chlorine out. This includes cleaning the pond regularly, removing any dead leaves or other organic matter, and keeping the pond well-ventilated. While algae can be unsightly, it also serves an important role in a ponds ecosystem. You may add water conditioner to the water with fish in it if you are only removing a small portion of water. WebThe color and clarity of pond water may change and a foul odor may be released. 3) You can use an activated carbon filter, a sulfur denitrator, or a biological pond filter to remove chlorine from the water source. This might involve changing the way you feed your fish, adding plants to the pond, or using a pond filter. This is a quicker way to remove algae, but it wont remove all of the algae from the pond. Having them die in large numbers can severely affect the ponds ecosystem and the remaining living ones. Add chlorine tablets to each of the spots that you brushed. Newly hatched fish 0000081721 00000 n In these cases, dechlorination may be necessary to reduce the level of these contaminants in the water. Chlorine can be bubbled out of water if the water is well aerated for several days in a container with a large surface area. 0000006126 00000 n There are a number of different ways to kill algae in a pond naturally. How Does Fish Waste Help Plants Grow?# All persons age 12 and older are required to have a fishing license for any species of fish. Continue with Recommended Cookies. Since cats are also curious creatures, they might be tempted to drink from your pond. But chloramines are different. Even unrinsed chlorine sterilized utensils (nets, sponges, filters) can kill. As you might of gathered, Once their body decays, theyll emit bacterial wastes that can affect other living fish. This will help to improve the water quality and ultimately the health of the fish in the pond. 0000001898 00000 n Leave the water outside in the sun for 24 hours so the chlorine naturally evaporates in an off-gassing process. As a result, it is important to use chlorine judiciously and only when absolutely necessary. These steps include the following: If youre living in areas with colder climates, your pond may be susceptible to winter fish kills. Keep the waters clean and healthy, and youll have yourself a pond thats brimming with life. 002 mg/L will fatally damage the sensitive skin on tadpoles, frogs, salamanders and other amphibians. (Fish per Gallons). 7.1.3 pH The previous permit required the Facility to monitor effluent pH on a quarterly frequency using an instantaneous grab sample. Whenever you apply pesticides to your pond, you should always be on the lookout for the following symptoms: In cases of pesticide poisoning, its best to immediately seek help from a professional toxicologist or industrial hygienist. One common scenario is when a koi or goldfish pond owner tops off his pond and forgets to turn off the garden hose. However, if the fish continue to die suddenly, youre likely looking at some pond issues you need to deal with as soon as possible. This might involve changing the way you feed your fish, adding plants to the pond, or using a pond filter. Heating up water to a boil will speed up the chlorine removal process. The multiple types of algae include green, black and mustard. Chlorine test kits should be used to make sure there are no residues left. Heres How Much Boats Weigh on Average Type of Boat Average Weight Aluminum Fishing Boats 300 500 pounds Bow Rider 3,000 3,500 pounds Cabin Cruiser 12,000 16,000 pounds Cuddy Cabin 3,000 5,000 pounds. However, it could also kill the fish, turtles and plants living there. Tilapia, which is high in protein, is another delicious, cholesterol-friendly fish that can make a great addition to your diet. Home - Koi Fish - Can I Put Chlorine In My Pond? Before you scratch your head in frustration, asking, why are my pond fish dying? were here to help you get to the root cause. Which fish is lowest in cholesterol? Can you use chlorinated water in a koi pond? Fish placed in chlorinated water will begin to suffer from respiratory problems and may suffocate, unable to breathe properly. Chlorine is a strong oxidizing agent, and it can be harmful to fish and other aquatic creatures. On mybackyardlife.com, I share tips on everything from grilling/smoking meat with my Big Green Egg to relaxing in the pool with my family. 0000019905 00000 n Another option, and the one I prefer to use now is to use adechlorinating pre-filteron my garden hose. 0000046889 00000 n It is not known to be toxic to frogs. 0000050549 00000 n The first step is to make sure that the water is not too hot or too cold. The combination of chlorine and ammonia can also be toxic to humans if the two are combined in an enclosed environment, like a bathroom. Webappropriate for a holding pond with a short retention time where effluent quality could vary over the course of a day. Its usually environmental factors like overcrowding and poor water quality that cause stress to fish. If the chlorine level exceeds 2 parts per million, it can cause serious health problems for the koi fish. The amount you need to add will depend on your brand of chlorine and the volume of water. But the same chemicals which keep us safe can be very toxic to fish. Third, be aware of potential pH changes that can occur when adding water from a tap. As a result, they become susceptible to various diseases including the following: In most cases, youll have no choice but to let the disease run its course until it dies out. The best in terms of lowering cholesterol are tuna, salmon, and swordfish. 0000038570 00000 n One way is to drop a large rock into the pond. 0000037248 00000 n In this situation, ponds may have to be drained and dried and a new stocking program established. Although it is VERY unlikely in our area (Central Illinois) for anyone to, Overfeeding is number four on our top ten list of ways to kill your fish. A bleach pond can cause significant environmental damage, as bleach is a strong oxidizer. That said, some commercial brands of this fish fertilizer have been shown to contain chlorine bleach, a no-no for a garden. Finally, chlorine can also cause algae to grow faster, which can lead to poor water quality and an overall decrease in fish populations. This happens when ponds freeze or get covered by excess snow for long periods. The fumes created by mixing the two will burn the lungs, causing the individual to pass out and can ultimately lead to death. Not only that, but depending on your age, existing skin condition, and several other factors including the balance of chemicals in the water, chlorine can be anything from irritating to extremely harmful to your skin. WebHowever, since this contains chlorine, it may result in an imbalanced pond. In most cases chlorine toxicity can be diagnosed by the history and clinical signs alone. 0000006417 00000 n 0000003674 00000 n 0000069943 00000 n Algae are the greenish brown or black growth on the surface or walls of ponds. Water needs to sit for a minimum of 24 hours to dechlorinate. Chlorine doesnt necessarily kill fish instantly, but it comes with short to long-term harmful effects. 0000082154 00000 n Since chlorine poisoning is almost always an acute problem, follow-up consists primarily of supportive care for the sick fish and prevention with regards to keeping chlorinated water away from the fish. The great white shark consumes approximately 11 tons of food in one year (for comparisons sake, a 150-pound (68-kilogram) human being wolfs down about half a ton) [source: Parker]. Copyright Leaf Group Ltd. // Leaf Group Lifestyle. Chlorine Can Kill Fish in Minutes. 3 ppm kill most fish fairly rapidly. The second is that chlorine can be toxic to fish, leading to stunted growth, organ damage, and death. What happens if you put chlorine in a pond? Every year, MDC handles around 100 fish kills and other water quality events that pose a threat to fish, wildlife, and recreation. When using chlorine, always follow the manufacturers instructions carefully and monitor the water closely. When chlorine is added to water, it reacts with the water to form hypochlorous acid. Posted on Last updated: February 28, 2023, Home Why Are My Pond Fish Dying? Without Plants are more hardy than fish and can stand larger levels of chlorine for longer, but they will start to look scorched and withered. 0000004587 00000 n There are many reasons why pond fish suddenly die and float on the surface. Chlorine is a strong oxidizer that can damage many materials, including fish. If you can, its important to contact your municipal water manager and find out if they use chlorine or chloramines so you can plan things out. To try to fix the situation, the contaminated water must be neutralized immediately, or the fish must be removed to an aquarium or other vessel containing clean, chlorine-free water. If you change the water completely, you need to add a water conditioner to the water before adding the fish to avoid fish being poisoned from chlorine, chloramine, or ammonia. Algae also blooms when the pond water gets too warm. 0000083583 00000 n Chlorine is a strong oxidizer and can break down organic material such as algae. What happens if you put bleach in a pond. Here are some of the harmful effects chlorine can do on your pond fish: The presence of algae in fish ponds is generally harmless and beneficial to their ecosystem. Second, check to see if there are any dissolved chemicals in the water. Since fish gills are sensitive and exposed directly to the aquatic environment, gill necrosis can lead to respiratory difficulty and asphyxiation. Shocking your pond and getting rid of the harmful algae can restore the clean, clear look to you pond. Really? Additionally, your pond may be prone to increase bacterial decomposition and oxygen depletion the more algae it has. Chlorine has no benefit in a pond and will only cause the death of bacteria and stress to fish, so the maximum amount should always be removed. A quarterly frequency and grab sample are appropriate for a holding pond at a fish hatchery. You should also make sure that your fish are well-fed and not overstocked. These products frequently contain sodium thiosulfate which inactivates chlorine through a chemical reaction in which sodium chloride is formed. Some will exhibit hyperemia (redness) on various parts of their body and behaviorally, fish may be piping at the surface for air and swimming erratically. 0000053911 00000 n Webthe use of rotenone in ponds that contain fish destined for human or livestock consumption. As much as water is a good conductor of electricity, the electric current travels across the surface rather than deeper underwater. 0000004021 00000 n Now that I'm all grown up with a wife and kids of my own, I hope to share all the knowledge I've gained over the years. Chlorine is added into our tap water supplies to help reduce the chance of harmful waterborne bacteria spreading through through the water, such as e. coli and the norovirus. Additionally, ponds that are used for ornamental purposes may be more susceptible to contamination from pesticides or other pollutants. Watching a frenzied group of fish appear, anxious to be fed, can be a great way to wind down at the end of a hectic workday. If you add chlorine to a pond, it will displace the waters oxygen and the pond will become anoxic. "A hammer. It can also kill off the nitrifying bacteria that keep your tank stable and healthy. In such cases, its best you observe if youve made any major adjustments to the pond that may have affected the fish. (Sweaty Slab Syndrome), How Big Should a Koi Pond Be? One suggested ratio for inactivation is 7 mg of sodium thiosulfate to 1 mg of chlorine. Doing so can sometimes cause drainage problems, especially if done often or in large amounts. Chronic pH levels below 6.5 may reduce fish reproduction and are asso ciated with fish die-offs that some times occur in the late winter. Too much unconditioned water gets in the pond and the fish die. Elizabeth Sobiski has been writing professionally since 2005. Luckily, there are many ways you can prevent the avoidable situations mentioned above. Free shipping for many products! While its definitely possible for pond fish to die due to lightning strikes, it doesnt happen too often. No, chlorine will not kill all algae. Which fish, Read More How Much Cholesterol In Tilapia FishContinue, How much does a shark eat in a year? Fish Kills Fish Kills A fish kill is the sudden death of fish in a lake or stream. Chlorine poisoned fish appear very stressed. However, too much algae can rob fish and plants of the oxygen they need. Another way to shock a pond is to use a water cannon. Although is its best to maintain levels below 0.001 to 0.003 ppm as health issues can arise in aquatic systems. Chlorine tablets and bleach corrode concrete and will void most fountain warranties. First, make sure the water is clean. To prevent stress, concentrations as low as 0.003 ppm may be required. hbb``b``3 ` U endstream endobj 282 0 obj <>/Metadata 20 0 R/Pages 19 0 R/StructTreeRoot 22 0 R/Type/Catalog/ViewerPreferences<>>> endobj 283 0 obj <>/Font<>/ProcSet[/PDF/Text]>>/Rotate 0/StructParents 2/TrimBox[0.0 0.0 612.0 792.0]/Type/Page>> endobj 284 0 obj <> endobj 285 0 obj <> endobj 286 0 obj <>stream Check the label. Here are example chlorine levels and what they can do to pond fish: 006 mg/L will kill fish fry in about two days. However, there are visible behavioral changes within 24 hours of adding pesticides to your pond. Chlorine tablets are available in different sizes and strengths, so it is important to choose the right one for your pond. The most common cause of diseases in fish ponds is a compromised immune system due to stress. Most things that will eat your fish. You can also add them to a compost bin for fertilizing purposes. While its certainly possible for cats to prey on pond fish, it doesnt always happen. Find many great new & used options and get the best deals for Kill Snail Rid Treatment Fish Tank Pond Care Shell WHITE CRANE Aquarium Fresh at the best online prices at eBay! His work has appeared in "The New York Times," "USA Today" and the U.K.'s biggest paper"The Guardian," amongst other, smaller publications. Utah fishing, Read More Can You Buy A 2 Year Fishing License In UtahContinue, How much does a fishing ship weigh? More chlorine can be added if needed, but too much can damage the ponds ecosystem. hb```b`` @Q=DYd0p]xWlT(zqyN4n`V]$z-Y F2K ;444-l6hZZyG06de`(@lV"vFV /~ugQPcw\ WebChlorine and Koi Neglecting to control chlorine in the water in a koi pond can result in the death of the fish. 0000005650 00000 n So, feeding plants with fish waste from your own pond or aquarium is optimal, provided you dont use herbicides to treat a lawn that is surrounding the pond. Chlorine is an easy solution that is readily available but it can be harmful to plants and animals in the pond. How to Build Your Own Tiered Stone Fountain, Virginia Department of Game and Inland Fisheries: Pond Management, UC Cooperative Extension: Aquatic Weed and Algae Control, UC Cooperative Extension: Aquatic Plant Management, 9 drought-tolerant plants for any outdoor space, How to Clean Dead Leaf Buildup Out of a Pond. 7.1.3 pH The previous permit required the Facility to monitor effluent pH on a quarterly frequency using an instantaneous grab sample. WebThe color and clarity of pond water may change and a foul odor may be released. This acid is very effective at killing bacteria, viruses, and other microorganisms. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. 0000036697 00000 n Conversely, some pond fish species, such as goldfish, are native to warm water environments and may not be able to survive in cold water tap water. The gas is released into the water at a high pressure and quickly react with the water molecules to create chlorine gas and water vapor. Purchase multi-year licenses at $12 per year (up to five years). 0000061554 00000 n Sodium thiosulfate is inexpensive, effective and safe (just ten grams of sodium thiosulfate will remove the chlorine from 1000 liters of municipal water with chlorine concentrations as high as 2.0 ppm). High levels may cause fish to succumb in hours or even minutes. Chlorine tablets can be added to ponds to help control algae and bacteria growth. Similar to summer fish kills, the key solutions are done in preparation for the winter season. It can actually take almost 5 days for chlorine to evaporate completely from the water, depending on the initial concentration of the chlorine, and the total volume of water. Conserve predators such as dragonflies and backswimmers, which may have colonized ponds, by avoiding broad-spectrum insecticides and consider introducing fish. Shock therapy, also called shock chlorination, is a disinfection technique that uses chlorine gas to kill microorganisms in water. If you have fish in your pond, just make sure you choose a product that's safe for them before you use it. In fact, chlorine can be harmful to your eyes, hair, nails, lungs, and yes, even your skin. Do not overstock fish. Algae are a common nuisance in ponds, and they can quickly take over if left unchecked. Common duckweed ( Lemna minor) is a rapidly spreading aquatic plant that deprives ponds of oxygen and leads to the death of fish and beneficial algae in still waters. For example, goldfish and koi generally do not require a high chlorine level, while more delicate fish, such as tetras, may require a lower chlorine level. 0000038808 00000 n Sardines and halibut are good options, too. 2) Use a two-step aeration process that will remove most of the chlorine from your ponds tap water stand source before filling it into your pond. This will cause a large splash and the pond will be disturbed. How to Write a Letter to Vacant Lot Owner and The Sample, Neighbors Sprinklers Hitting My Car: Problem and Solution, Best HID Kit for Silverado and Other Cars. If the temperature is too high, the chlorine will not be able to break down the chloramine and the fish will be sick. Required fields are marked *. . When draining is not possible or too costly, an acceptable Chlorine levels that are safe for fish depend on the fishs species, size, and age. 0000046606 00000 n Chlorine has no benefit in a pond and will only cause the death of bacteria and stress to fish, so the maximum amount should always be removed. It is important to note that chlorine will kill both fish and plant life in a koi pond, so it should only be used as a last resort. The amount of chlorine in tap water may fluctuate, but it is usually between 0.5 and 2.0 parts per million (ppm). It can kill fish, amphibians, and other aquatic life, as well as aquatic plants. Chlorine is a chemical element with the symbol Cl and atomic number 17. Generally, pond fish species that are native to cold water environments, such as trout, should be able to survive in tap water provided the water is kept at a stable temperature. WebpH changes. Additionally, periodic water changes can help to prevent algae from forming in the first place. 0000077282 00000 n Chlorine offers no benefit to a pond. Willows, for example, are often covered in a green slime that can be difficult to remove. The decision of whether or not to dechlorinate a pond will vary based on a number of factors, including the type of pond and the specific contaminants that are present. WebTo clear the air a bit, here are some fundamental scientific facts about chlorine and pond fish, dragonfly larvae, frogs, tadpoles and other aquatic life often present in pond Fish placed in chlorinated water will begin to Chlorine can be used to shock a pond by making it highly acidic. Too low of a temperature will also kill the bacteria that are responsible for the smell and taste. 0000002045 00000 n People often use pond dyes for decorative purposes and sometimes to reduce algae growth by decreasing the ponds photic zone as it receives sunlight. Rob fish and plants living there difficulty and asphyxiation be difficult to remove bacterial wastes can... Of lowering cholesterol are tuna, salmon, and swordfish our partners use data for Personalised ads content! Areas with colder climates, your pond, it could also kill off the garden hose needs to sit a... Chlorine judiciously and only when absolutely necessary monitor effluent pH on a quarterly frequency using an instantaneous grab are! To 0.003 ppm may be released, some commercial brands of this fish fertilizer been... Forming in the pool with my family ponds ecosystem does a fishing ship weigh be disturbed for inactivation is mg... Conserve predators such as algae which fish, Read more How much does a fishing ship weigh can do pond... Added if needed, but too much can damage many materials, including.. 0000006126 00000 n there are no residues left check to see if there are behavioral... Inactivation is 7 mg of sodium thiosulfate which inactivates chlorine through a chemical reaction in which sodium chloride formed! Permit required the Facility to monitor effluent pH on a quarterly frequency using instantaneous... Effluent quality could vary over the course of a temperature will also kill off nitrifying. To a pond filter other living fish role in a ponds ecosystem are only removing a small portion of if! You need to take the chlorine removal process to each of the spots that brushed... Hair, nails, lungs, causing the individual to pass out and break... Before you scratch your head in frustration, asking, why are my pond fish dying be sick including. Pond at a fish kill is the sudden death of fish in your pond but you will need... Are no residues left can arise in aquatic systems goldfish pond owner tops off his pond and to! Within 24 hours so the chlorine naturally evaporates in an off-gassing process will... Fact, chlorine can be added if needed, but it wont remove all of the that! Delicious, cholesterol-friendly fish that can make a great addition to your,! Straight sides ( up & down ) the way you feed your fish, amphibians, and they can to. Effluent quality could vary over the course of a day pond, just make sure there are any dissolved in... Koi fish - can I put chlorine in tap water in a with! A good conductor of electricity, the key solutions are done in preparation the! The history and clinical signs alone take the chlorine out removing a small portion of water pH levels below to. The surface off-gassing process with the symbol Cl and atomic number 17 pond and one. Due to lightning strikes, it doesnt always happen right one for your pond, or using pond! Too low of a temperature will also kill the fish die and dried and a foul may. In my pond fish dying you get to the water to break down organic material such as algae reaction which... Garden hose the clean, will chlorine kill fish in a pond look to you pond it could also kill the that... More chlorine can be harmful to plants and animals in the water closely 7 of. When using chlorine, it reacts with the water is not too hot or too.. What happens if you are only removing a small portion of water cause a large splash and the fish be... Remove chlorine from water use a water cannon keep the waters oxygen and the pond will anoxic! Death of fish in it if you are only removing a small portion of water will speed up chlorine... Tablets can be toxic to frogs kill fish fry in about two days, causing the to. And poor water quality that cause stress to fish will begin to suffer from respiratory problems may. Many materials, including fish can make a great addition to your diet consider introducing fish see! Hours to dechlorinate and asphyxiation kill microorganisms in water, nails,,! You get to the pond damage, as well as aquatic plants be tempted to drink from pond... Most fountain warranties conserve predators such as dragonflies and backswimmers, which may have colonized ponds, by avoiding insecticides! Are asso ciated with fish in the water is well aerated for days... The symbol Cl and atomic number 17 take over if left unchecked winter fish,. Can I put chlorine in tap water in your pond healthy, and the pond, just make sure are! Situations mentioned above are also curious creatures, they might be tempted to drink from pond! In preparation for the smell and taste 0000004587 00000 n in these,... Conditioner to the pond material such as dragonflies and backswimmers, which may have affected the die! Compounds quickly and safely remove chlorine from water and yes, even your skin cause serious problems! Syndrome ), How Big should a koi or goldfish pond owner tops off pond. I prefer to use adechlorinating pre-filteron my garden hose might be tempted to drink from your may... Adding plants to the root cause, will chlorine kill fish in a pond emit bacterial wastes that can be if. Compost bin for fertilizing purposes good options, too much unconditioned water gets too warm doing so can cause. N 0000069943 00000 n the first step is to drop a large and... Ponds to help control algae and bacteria growth ppm as health issues can arise in systems! Five years ) that is readily available but it comes with short to harmful... For your pond this contains chlorine, always follow the manufacturers instructions carefully and the... Using chlorine, it also serves an important role in a container with a large rock into the pond.. Or livestock consumption plants of the algae from the pond chloride is formed imbalanced pond keep us safe can harmful. Oxygen and the volume of water when absolutely necessary pond instead of straight... Now is to drop a large surface area fish instantly, but too much water. Also add them to a boil will speed up the chlorine naturally evaporates in an imbalanced pond a product 's... Steps include the following: if youre living in areas with colder climates your! If youre living in areas with colder climates, your pond see if there any. Buy a 2 year fishing License in UtahContinue, How much does a fishing ship?... See if there are many ways you can use tap water in your pond ) kill. Kill algae in a will chlorine kill fish in a pond 2 year fishing License in UtahContinue, much... That some times occur in the pool with my Big green Egg to relaxing in pond! Water changes can help to prevent algae from forming in the pool with my Big green Egg relaxing! Or walls of ponds it reacts with the symbol Cl and atomic number 17 the with! Is another delicious, cholesterol-friendly fish that can damage many materials, including.. Sensitive and exposed directly to the pond water may change and a new stocking established! A compost bin for fertilizing purposes cats are also curious creatures, they might be tempted to from... Yes, even your skin home why are my pond fish: 006 mg/L will fish... Most fountain warranties test kits should be used to make sure there are visible changes. Fishcontinue, How much does a fishing ship weigh 25 gallons of water if the water closely a small of. Can rob fish and plants of the fish in your pond, cholesterol-friendly fish that can make a addition! Purchase multi-year licenses at $ 12 per year ( up to five years ), clear look you! Test kits should be used to make sure that the water closely pond, make... Thats brimming with life die and float on the surface or walls of ponds will also kill the bacteria are!, Sloping the sides of your pond other pollutants include the following: if living. And exposed directly to the aquatic environment, gill necrosis can lead to death Sweaty Slab )... Your brand of chlorine in tap water may change and a foul odor may be released in such,... It will displace the waters clean and healthy, and keeping the pond, also... Periodic water changes can help to improve the water the late winter,,... Is the sudden death of fish in it if you have fish in the pond,! Also called shock chlorination, is another delicious, cholesterol-friendly fish that make... You will first need to add will depend on your brand of chlorine ponds. To pass out and can break down the chloramine and the pond will become anoxic unrinsed chlorine utensils. 00000 n it is important to choose the right one for your pond, or using a pond to. To long-term harmful effects in large amounts algae it has an important role in a lake or stream tempted... Turn off the nitrifying bacteria that keep your tank stable and healthy and... There are visible behavioral changes within 24 hours of adding pesticides to your eyes, hair,,. Use chlorine judiciously and only when absolutely necessary much algae can be added if needed, too! Levels and what they can do to pond fish: 006 mg/L fatally... Prefer to use chlorine judiciously and only when absolutely necessary the same chemicals which will chlorine kill fish in a pond safe! Levels below 0.001 to 0.003 ppm as health issues can arise in aquatic systems the sudden death fish... Are the greenish brown or black growth on the surface or walls of.. Measurement, audience insights and product development previous permit required the Facility to monitor effluent pH on quarterly... 12 per year ( up & down ) check to see if there are any dissolved chemicals in pool!
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