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Ensure the safety of tap water |
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How should we maintain residential water related equipment in order to ensure the safety of tap water? |
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Reservoirs on the ground floor should be above ground to prevent contaminants from entering into the tap water supply. |
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Reservoir(s) must be cleaned on a regular basis, at least once every six months. You can do it yourself, or have one of our certified companies perform the work. |
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Tap water pipes must not be connected to any other source of water to prevent the possibility of contamination. |
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The household tap water usage |
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What are the causes of indirect contamination in household tap water usage? |
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Often due to the inappropriate use or maintenance of water related equipment, household tap water becomes indirectly contaminated. |
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The most common causes are¡G |
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When the water entry point of water containers (for example:buckets, flushing toilet reservoir, washing machine tc.) is lower than the highest water level. So when the water level is high, the entry point will be immersed in water, therefore causing a negative pressure. This in turn will allow contaminants to enter the tap water delivery lines, and possibly polluting the tap water around your home.? |
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When pump motors are directly connected to the tap water pipe lines. This often causes vacuum pressure and back flow, which can contaminate tap sources. |
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When drinking reservoirs are connected multiple water sources (suchas underground water¡^, this can lead to contamination of the tap water. |
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When reservoirs are located down low, or when reservoirs locatedon rooftops are not well covered. This invites the possibility of rainor contaminated water entering the reservoir, and thus polluting thetap water.? |
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The quality of the tap water |
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How do you determine whether the quality of the tap water in your homeis safe? |
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Usually, you can only observe this by sight, odor or flavor. Tap water should be free of color, odor¡]slight smell of disinfectant is normal¡^,and taste¡]slight taste of disinfectant is normal¡^. |
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Why do fishes die |
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Why do fishes seem uncomfortable or die when tap water is used in theaquarium? |
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This is due to the presence of chlorine in the water, which some fishesare very sensitive to. Customers can let tap water sit in a non-covered container for a few hours, to get rid of the chlorine, before using it inthe aquarium. Alternatively, one can also utilize active carbon filters,or add a suitable amount of sodium sulfide (also called neutralizers),to shorten the amount of time required to remove the chlorine from tap water. |
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How is tap water processed |
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How is tap water processed? |
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The processing procedure at every water purification plant is designedin accordance with the characteristics of the water source in mind.The most common procedures currently used are as follows¡Gfor ground water sources¡GAeration, filtration and disinfection¡Ffor surface water sources¡Gcoagulation, precipitation, rapid filtration and disinfection. |
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White precipitation |
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After tap water is boiled, a layer of white precipitate on the surface or on the side of the heating container, is it harmful to our health? |
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The white precipitate on the surface or on the side of the heating container is due to the presence of hydrocarbon saline (also calledhard water) which calcifies into a calcium carbonate solid. According to international research data, the fractional existence of this substance in tap water is not harmful to human health. |
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Tap water from the spout |
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Sometimes tap water from the spout looks milky white, but after standingfor a while, it clears up, is this harmful to our health? |
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The pipe lines for tap water delivery is pressurized, therefore, it is necessary to install depressurization valves (breathing valves) atselected points to prevent over pressurization. This means air will be sucked in to stabilize pipe line pressure, therefore, adding air bubblesinto the tap water system. The air bubbles make the tap water look whitish, but as they escape, the water becomes clear again. This has nothing to do with the water quality, please don't worry. |
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Tap water smell like disinfectants |
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Why does tap water smell like disinfectant? |
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In order to ensure the safety of tap water, and to prevent water frombecoming a media for spreading diseases, tap water are processed with a safe amount of chlorine additives, in accordance with the "Drinking Water Quality Standards" (0.2 to 1.0 mg/L). Usually this is not detectable by smell or taste, only more sensitive people will notice it, but it does no harm to our health. Therefore, the slight smell or taste of disinfectant means the quality of water is safe. |
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Water electrolyte tests |
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Purifier marketing personnel make frequent calls offering to conduct water electrolyte tests, misleading most people to suspect tap water quality, whyis that? |
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You may have come across a water purification salesperson placing a simple electrolyte tester into tap water, and as it electrolyzes, yellowish solids begin to form in the tap water. As more and more of these solids form, the tap water turns into a reddish blur, that's when the salesperson declares the quality of your tap water to be problematic,and that you should purchase a water purifier. In reality, this is utilizingan electrolysis principle that most consumers do not understand tomake a sales pitch. Tap water naturally contains some electrolytes ¡]sodium, calcium, and magnesium etc.¡^, which conduct electricity.The electrolyte testers that these salespersons use usually have metallic rods as anodes, and aluminum rods as cathodes, which,when immersed in water and electrolyzed, will cause metallicions to be released from the anode metal rod. This will immediately react with water and turn into a yellowish (reddish) hydrogenated metallic precipitation. If the anode is changed to an aluminum rod, then aluminum ions are released into the water. This reacts with water and produces a hydrogenated alluminum precipitation.Therefore, the murkiness created through electrolysis has nothing to do with the quality of the tap water,but from the anode rods used in the process. Please DO NOT be fooled by these misleading electrolysisexperiments. |
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Private sources of water supply |
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Can we request your company to conduct tests on private sources of water supply? |
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We will not be able to perform tests for private water sources not provided by our company. Please contact your local environmental protection agency or private companies for these tests. |
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