This study revealed that UV-C irradiation of water purifiers is effective in disinfecting microbial contaminants in drinking water and provides basic ... This also means that the UV spectrum has a longer wavelength than x-rays and a shorter wavelength than visible light; the order of energy, from low to high, is visible light, UV, than x-rays. As a water treatment technique, UV is known to be an effective disinfectant due to its strong germicidal (inactivating) ability; UV is energetic enough ... UV radiation is so effective that it can eliminate up to 99.99% of bacteria and viruses, including those associated with water-borne illnesses such as Typhoid, Gastroenteritis, Hepatitis, Flu and Cholera. UV water purification can be used to treat water whether it’s from a municipal water supply, a drinking-water well, lake or a spring.UV provides a long-term reliable method of treating well water by running the water over a UV light that kills bacteria and viruses. This process of exposing water to UV light is simple but effective, and destroys 99.99 percent of harmful microorganisms, including some that are chlorine resistant (such as Cryptosporidium and some forms of Giardia).The main advantage of using a UV steriliser is that it actively removes 99.9% of micro-organisms from your water without affecting its taste, smell or appearance. Another positive aspect of using a UV steriliser to treat your water is that it is ‘always on’ and will work 24 hours a day. In addition, these systems are extremely energy ... Ultraviolet (UV) Water Treatment Systems. UV light is a powerful disinfection tool, and a UV water purifier is a simple, effective way to remove microorganisms in water. Nalco Water is a global supplier of commercial and industrial UV water treatment systems. Our UV purification systems are available in a variety of sizes and configurations ... Treatment: Does UV Light Kill E. Coli/Coliform Bacteria in Well Water? Yes UV light is a type of radiation, and it is effective against all viruses, bacteria and protozoa, in high enough doses. For coliform bacteria including E. coli, a UV dose of 6.5-7 mJ/cm² is generally required, meaning a Class B ultraviolet water purifier can do the trick.UV light does not work well on cloudy water because small particles may block germs from the light. If the water is cloudy, first filter it through a clean cloth, paper towel, or coffee filter OR allow it to settle. Then, draw off the clear water and disinfect it using the UV light. Always follow the manufacturer’s instructions.UV - Ultraviolet light as a Water Purifier FAQs. These questions & answers about UV water treatment systems used to disinfect drinking water … Pros: UV light is germicidal. UV light filters do not use chemicals. UV light filtration requires little maintenance. Cons: Limited water filtration. Affected by water turbidity. After diving deeper into these pros and cons, you will have a clearer idea of whether or not UV light water filters are suitable for your home. Let’s jump right in. Thus, their widespread adoption for large-scale water treatment has been insufficient. Yujie Men. Ultraviolet, or UV, light is already widely used to …Quantum Series | 18 GPM Multi-Stage UV Ultraviolet Light Whole House Water Treatment Filtration System, 48W. Ideal for 4-6+ bathroom homes on well water system or with an unsafe water source. Removes 99% of harmful contaminants and sediments commonly found in untreated water. Extends life of plumbing and appliances by inhibiting scale …UV light water treatment stage in your water system can be very effective at sterilizing your water, but at what point should the sterilizer be installed?2. Filter the water. In order to sanitize the water with UV from the sun, the water itself must be clear. If there is any sediment in it, the UV will be less effective. Place a cloth over the top of the bottle and pour the water through the cloth. This will capture any sediment and make the water clear.In tests, the technique was found to boost the degradation of one PFAS form, called PFOA, from 10% to 95% compared to other UV treatment methods, and defluorinate up to 94% of the molecules.VerterPure VP2 Mini UV-C LED Ultraviolet Water Purifier, Reduce up to 99.99% of Contaminants at Flow Rate 0.52GPM, Smart On/Off Switch, 12V DC for RV Boats Off-Grid Livings, Mercury Free. 2. $16900. FREE delivery Thu, Feb 15. Or fastest delivery Mon, Feb 12. Only 15 left in stock - order soon.Typical installation with UV sterilizer. If the water is cloudy or high in turbidity, it is essential to treat the water prior to treating with UV light. The UV Transmission level (“UVT”) should be low enough to allow the UV rays to penetrate the water. A 5 micron filter for pretreatment is recommended as a minimum precaution.UV light is a safe and effective means to treat water. High energy photons inactivate pathogens by attacking an organisms nucleic acids (DNA and RNA), denaturing them extensively such that the …UV light destroys bacteria and viruses by altering DNA. This natural, non-chemical method of treatment alters the DNA of the microorganisms in a process called thymine dimerization. ... UV disinfection systems can be used in conjunction with other water treatment methods such as softeners and require very little maintenance as long …UV light has a number of benefits when it comes to water treatment. For one, UV light can help to kill harmful microorganisms, making the water safe to drink. In addition, UV light can also help to remove unwanted contaminants, such as chlorine and minerals. As a result, UV-treated water is often more pure and refreshing than water that has ...UV water treatment is a relatively simple process. Step 1: Pre-treated water enters the stainless steel chamber flowing around the UV lamp. Step 2: The microbes in the water are exposed to the ultraviolet light (254nm wavelength) which alters their DNA, making them unable to replicate. The microbes are now harmless. Step 3: The treated water then …2. Filter the water. In order to sanitize the water with UV from the sun, the water itself must be clear. If there is any sediment in it, the UV will be less effective. Place a cloth over the top of the bottle and pour the water through the cloth. This will capture any sediment and make the water clear.Communities need to understand how aquifers work. A growing demand for water implies the need for an improved understanding of our resources, and the ability to manage that demand ... UV Guard delivers innovative, chemical-free purification technologies that use the natural power of UV light to treat water and other liquids – simply and sustainably. Every day our market-leading disinfection systems are trusted by industrial, commercial and domestic users across Australia and around the world. How Long Does it Take UV to Kill Bacteria in Water?Please share this video https://youtu.be/Im4E5uKkK1QFor more great information about water treatment, subs...DWI (water regulatory company of UK) research indicates that only 10 % of current water companies use UV treatment process. Research in 2017, shows that 1492 mL/d amount of water is treated using UV light from 139 units [81]. Thus, there is massive scope for the further development of the UV treatment process.In theory, municipal water supplies are safe. They’re monitored, tested, and treated by the powers that be. But of course, we know that doesn’t always work. And even if water is cl...The UV disinfection system for water treatment, such as the Waterdrop Countertop Reverse osmosis Filter System, contains UV purification technology that helps kill pathogens like bacteria and viruses.VOCs, nitrates, heavy elements like mercury, copper, arsenic, fluoride, etc. Many revere osmosis water filters that use a germicidal …The UV light water treatment controls the spread of fish disease, viruses, and other harmful pathogens, as well as keeping your water clear by destroying free floating algae. Aqua Ultraviolet Ultraviolet water filters will clear your water in 3 to 5 days, sometimes overnight, and keep it that way. Performance is guaranteed when sized, installed ...This region is further subdivided into four sub-regions; vacuum UV (100–200 nm), UVC (200–280 nm), UVB (280–315 nm), and UVA (315–400). Its disinfection effectiveness comes primarily from the UVC and UVB portions of the light. Whereas chemical disinfectants destroy or damage a microbe's cellular structure, UV light …the purposes of this article, the focus will be on residential drinking water treatment devices using ultraviolet light technology. What is Ultraviolet Light? Ultraviolet light (UV), as early as 1845, was known to influence microorganisms. Since then, disinfection of drinking water using UV has become a staple process around the world.Ultraviolet (UV) is invisible light radiation with a wavelength between 200-300 nanometres. It can be used to kill or damage organisms that cause disease in drinking water, including some that cannot be killed by chlorine such as Cryptosporidium. UV lamps kill bacteria in your water, but won't change the taste.Safe and effective therapies for treatment-resistant and novel pathogens are urgently needed. Ultraviolet (UV) light has long been known to exhibit antimicrobial effects. UVC (100–280 nm) [2, 3] is widely used to decontaminate environmental surfaces , but has harmful effects on human DNA .Effective. Well-designed UV water treatment systems can eliminate up to 99.99% of microorganisms. A common problem with UV disinfection systems is shadowing – areas where particles in the water block the UV light. Any microorganisms in the shaded area are protected. To avoid shadowing, look for UV disinfection systems that expose …WHOLE HOUSE Well Water Treatment Solutions: Chlorination - This would include a chemical feeder. And at least one retention tank to kill coliform and e-coli bacteria. UV Filtration - Sterilization light to kill harmful bacteria. And keep in mind that many people cannot use this method, without first filtering and softening the water due to ...Anyway, the objective here is to find out about ultra violet light systems that are used to treat water primarily to disinfect. Culligan UV systems are a water purifier device that uses ultra violet light systems to disinfect the water and rid it of all the tiny bacteria and harmful germs that manage to thrive in water at natural temperature ...2. Filter the water. In order to sanitize the water with UV from the sun, the water itself must be clear. If there is any sediment in it, the UV will be less effective. Place a cloth over the top of the bottle and pour the water through the cloth. This will capture any sediment and make the water clear.Pressure treated wood is normally light green or brown in color and is nothing more than good old fashioned wood treated under high pressure with a pesticide. Expert Advice On Impr...Liver spots are darkened patches of skin. They often develop on areas that have been exposed to ultraviolet (UV) light. Contrary to the name, liver …A germicidal region of UV light between 200 and 300 nm is known to eradicate microorganisms, including bacteria, fungi, protozoa, viruses, yeasts, …Otherwise, much of the UV light is absorbed and becomes largely ineffective. The second main disadvantage is that ultraviolet purification offers no residual treatment. Unlike chlorine, which maintains a presence in the water after the treatment continuing to disinfect the water, ultraviolet radiation does not stay in the water.Your guide to sunning with psoriasis — from A to UV. Sunshine can be extremely helpful for psoriasis, but it’s important to be aware of how much sun exposure you get. Some people w...Shop for Uv Light Water Treatment at Walmart.com. Save money. Live better.UV light has a number of benefits when it comes to water treatment. For one, UV light can help to kill harmful microorganisms, making the water safe to drink. In addition, UV light can also help to remove unwanted contaminants, such as chlorine and minerals. As a result, UV-treated water is often more pure and refreshing than water that has ...UV Superstore's systems are fabricated to treat flows from low flows up to hundreds of gallons per minute and are designed for disinfection, ozone destruction ...A ultraviolet light (UV) system. It’s technically not a water filter. It doesn’t filter out anything by ‘capturing’ particulate contamination in a filter media. Rather, a UV (Ultraviolet) works by ‘zapping’ organic pathogens that may be in the water supply. The method (the science) even works by natural sunlight (albeit much slower).#5: Decide on ultraviolet (“UV”) light ozone water treatment or corona-discharge type: While UV light can produce low levels of ozone, it works best for removing slight odors and should be not used for disinfection. Corona discharge uses electricity inside a ceramic or glass cell or stainless steel plate chamber to produce ozone.The UV disinfection system for water treatment, such as the Waterdrop Countertop Reverse osmosis Filter System, contains UV purification technology that helps kill pathogens like bacteria and viruses.VOCs, nitrates, heavy elements like mercury, copper, arsenic, fluoride, etc. Many revere osmosis water filters that use a germicidal …UV water treatment is a relatively simple process. Step 1: Pre-treated water enters the stainless steel chamber flowing around the UV lamp. Step 2: The microbes in the water are exposed to the ultraviolet light (254nm wavelength) which alters their DNA, making them unable to replicate. The microbes are now harmless. Step 3: The treated water then …Communities need to understand how aquifers work. A growing demand for water implies the need for an improved understanding of our resources, and the ability to manage that demand ...1. Flow rate: Consider the flow rate of your well water system when choosing a UV light. The flow rate will determine the size of the UV light needed to effectively treat the water. 2. Lamp life: Look for a UV light with a long lamp life. This will save you money in the long run as you won't have to replace the lamp frequently. 3.Springwell UV Purifier. The Blackcomb 5.1 UV purifier by Springwell is a very powerful pathogen disinfectant that can be attached to a standard whole house carbon filtration system. The 30mj/cm2 dose is powerful enough to kill 99.9% of bacteria, viruses, and pathogens including Cryptosporidium and Giardia.In conclusion, UV disinfection is a great way to kill bacteria in your water. As a natural and safe system you can skip the salt treatments and chemicals. So ...After a good scrubbing, rinse the area with warm water and then allow it to dry completely. When it has dried, spray the area again with undiluted vinegar. This time, allow the vinegar to dry naturally rather than rinsing it away. This will let the vinegar work on any remaining mold spores and help prevent regrowth.Pressure treated wood is normally light green or brown in color and is nothing more than good old fashioned wood treated under high pressure with a pesticide. Expert Advice On Impr...Ultraviolet (UV) Water Treatment Systems. UV light is a powerful disinfection tool, and a UV water purifier is a simple, effective way to remove microorganisms in water. Nalco Water is a global supplier of commercial and industrial UV water treatment systems. Our UV purification systems are available in a variety of sizes and configurations ...The UV light, 254 nm, is measured in water treatment as Milli-joules per Centimeter square. The United States Department of Health has determined that an effective …UV light provides rapid, effective inactivation of microorganisms through a physical process. When microorganisms are exposed to germicidal wavelengths of UV ...Aug 24, 2022 · With disinfectants, it is important to allow the chemical or UV light enough time to treat the water and kill the organisms before drinking – this is called contact time. Chemical Disinfection Chemical disinfection involves adding one or more chemicals to your filtered water that are effective at killing waterborne organisms. Chlorine is a chemical that, when added to water, generates an undesirable by-product. UV has no effect on the water and no by-product. It is especially useful for potted plants, since it raises the level of UV protection without the use of chemicals. It’s a healthy, ecologically beneficial, and cost-effective method to treat your water.Aug 24, 2022 · With disinfectants, it is important to allow the chemical or UV light enough time to treat the water and kill the organisms before drinking – this is called contact time. Chemical Disinfection Chemical disinfection involves adding one or more chemicals to your filtered water that are effective at killing waterborne organisms. Anyway, the objective here is to find out about ultra violet light systems that are used to treat water primarily to disinfect. Culligan UV systems are a water purifier device that uses ultra violet light systems to disinfect the water and rid it of all the tiny bacteria and harmful germs that manage to thrive in water at natural temperature ...Aug 24, 2022 · With disinfectants, it is important to allow the chemical or UV light enough time to treat the water and kill the organisms before drinking – this is called contact time. Chemical Disinfection Chemical disinfection involves adding one or more chemicals to your filtered water that are effective at killing waterborne organisms. Water in a full-scale drinking water treatment plant was irradiated with ultraviolet (UV) doses of 250, 400, and 600 J/m2, and the effect on bacterial communities investigated using 16s rRNA gene ...No, UV light disinfection systems will only disinfect water at the point of contact. As soon as water leaves the UV light disinfection system recontamination from back …Feb 15, 2023 · UV water filtration works by emitting UV light onto the water. UV light can directly attack and kill microorganisms like bacteria and viruses, preventing waterborne diseases. UV water filtration is easy to install and low maintenance, so it’s ideal for most households. UV water filtration can’t remove dissolved contaminants, so it’s best ... UV ranges from about 100 nanometers (nm) to 400 nm, whereas humans can see a rainbow of color from violet …No, UV light disinfection systems will only disinfect water at the point of contact. As soon as water leaves the UV light disinfection system recontamination from back flow, breaks and biofilms (slime) can occur as there is no residual disinfectant in the water. Well designed water treatment systems always locate UV light disinfection systems ...Otherwise, much of the UV light is absorbed and becomes largely ineffective. The second main disadvantage is that ultraviolet purification offers no residual treatment. Unlike chlorine, which maintains a presence in the water after the treatment continuing to disinfect the water, ultraviolet radiation does not stay in the water.The dosage of UV emitted into water affects the strength of the UV water purifier. Once this energy reaches a certain threshold, it becomes strong enough to inactivate the majority of … UV Guard delivers innovative, chemical-free purification technologies that use the natural power of UV light to treat water and other liquids – simply and sustainably. Every day our market-leading disinfection systems are trusted by industrial, commercial and domestic users across Australia and around the world. Portable UV Light Sterilizers for Emergency Drinking Water - the SteriPEN®. The SteriPen® Classic is a portable UV water purifier that can treat a liter of water, using ultraviolet light, in 1 1/2 minutes. The manufacturer informs consumers that UV light destroys viruses, bacteria, and protozoa. Liver spots are darkened patches of skin. They often develop on areas that have been exposed to ultraviolet (UV) light. Contrary to the name, liver …Otherwise, much of the UV light is absorbed and becomes largely ineffective. The second main disadvantage is that ultraviolet purification offers no residual treatment. Unlike chlorine, which maintains a presence in the water after the treatment continuing to disinfect the water, ultraviolet radiation does not stay in the water.Invisible to the human eye, ultraviolet (UV) light can be used to disinfect microorganisms in water treatment processes. The wavelengths of UV light range between 200 and 300 nanometers (billionths of a meter). Ultraviolet radiation is produced at 254 nm from special low-pressure mercury vapor lamps.In tests, the technique was found to boost the degradation of one PFAS form, called PFOA, from 10% to 95% compared to other UV treatment methods, and defluorinate up to 94% of the molecules.Jan 28, 2009 · Turn on the Lights. Companies kill deadly bacteria and strip out heavy metals in water using new technologies that range from ultraviolet (UV) light to microbubbles. The Big Apple wants to use the ... This study evaluated the potential of using ultraviolet (UV‐C) treatment in reducing the microbial population in agricultural water. All tested doses of the UV‐C treatment reduced the E. coli levels significantly (p < .05) in the water samples with the turbidity levels up to 23.32 NTU.The decrease in the turbidity from 23.32 to 10.93 NTU …Ultraviolet light is another disinfection method for destroying disease-causing organisms in wastewater effluent in onsite wastewater treatment systems.Mar 19, 2021 · In a UV ozone generator, ozone is produced as oxygen is passed between the lamp and the quartz sleeve of a UV light. The ozone is then drawn into water using a venturi and the water treatment process begins. However, UV ozone generators are not as powerful as electrical ozone generators and produce ozone at lower concentrations. Are you planning a trip to witness the mesmerizing beauty of the Northern Lights? If so, you’re in for a treat. The Northern Lights, also known as Aurora Borealis, are a natural wo...The early 20th century saw the inception of UV light in water treatment. Cities searching for ways to provide safe drinking water to their growing populations began to experiment with UV technology. By the 1950s and 1960s, UV water treatment systems became a more common sight, especially in Europe. However, the journey wasn't …Two different UV wavelengths are employed in water treatment, the 254 nm and the 185 nm. The 254 nm (1 nm = 10-9 m = 10 Å) UV light—also called the germicidal light due to its unique ability to destroy microorganisms—is employed in disinfection and ozone destruction applications.Here's a tip for removing a broken light bulb using an empty plastic water bottle. Expert Advice On Improving Your Home Videos Latest View All Guides Latest View All Radio Show Lat...No, UV light disinfection systems will only disinfect water at the point of contact. As soon as water leaves the UV light disinfection system recontamination from back flow, breaks and biofilms (slime) can occur as there is no residual disinfectant in the water. Well designed water treatment systems always locate UV light disinfection systems ...Understanding UV Treatment of Water. Ultraviolet light, also called UV light, is one of many water treatment options. UV disinfection works by altering microbial DNA and effectively killing waterborne …Sustainable. UV Guard delivers innovative, chemical-free purification technologies that use the natural power of UV light to treat water and other liquids – simply and sustainably. Every day our market-leading disinfection systems are trusted by industrial, commercial and domestic users across Australia and around the world. This also means that the UV spectrum has a longer wavelength than x-rays and a shorter wavelength than visible light; the order of energy, from low to high, is visible light, UV, than x-rays. As a water treatment technique, UV is known to be an effective disinfectant due to its strong germicidal (inactivating) ability; UV is energetic enough ... This also means that the UV spectrum has a longer wavelength than x-rays and a shorter wavelength than visible light; the order of energy, from low to high, is visible light, UV, than x-rays. As a water treatment technique, UV is known to be an effective disinfectant due to its strong germicidal (inactivating) ability; UV is energetic enough ... Taste & Odor Free—UV does not add any chemical taste or odor to the water. Extremely Effective—One of the most effective ways to neutralize disease-causing microbes by destroying 99.99%. Requires very little energy—Uses about the same energy as it would to run a 60-watt light bulb. Low Maintenance— Set and forget type of system, just ...
Quench machines use LED UVC to maintain water’s cleanliness, without adding any chemicals, like chlorine, to the filtered water. Independent testing has concluded that UV disinfection technology can eliminate: 99.9999% of bacteria. 99.999% of viruses. 99.9% of parasites, including cryptosporidium and giardia.. Safety source supply
Oct 11, 2022 · 2. Filter the water. In order to sanitize the water with UV from the sun, the water itself must be clear. If there is any sediment in it, the UV will be less effective. Place a cloth over the top of the bottle and pour the water through the cloth. This will capture any sediment and make the water clear. For a long time, UV lights have been used in koi ponds to keep the water clear. Algae floating in the water can grow and spread, making your pond murky and green. UV radiation is a powerful germicide that is extremely efficient at killing single-celled organisms. UV lights can help keep a koi pond crystal clear by killing microorganisms and ...Sumatriptan Injection: learn about side effects, dosage, special precautions, and more on MedlinePlus Sumatriptan injection is used to treat the symptoms of migraine headaches (sev...With delicious food and a fun atmosphere, these Orlando restaurants should be at the top of your itinerary. Here's where to book a table. People come to Orlando to have fun. They w...The UV light inactivates any viruses or bacteria from the source water. Deacon Reservoir, Winnipeg, Manitoba. UV disinfection has been used to treat water in Winnipeg and protect from parasites since May 2006. This facility’s UV lights are intense enough that the water only needs a few seconds of exposure to inactivate bacteria and …The lights kill the germs that hide inside your HVAC system, helping the machine run at its best. All in all, the right HVAC UV light can improve the quality of your indoor air and the functionality of your system. If you have a central heating and cooling system, the light is well worth the investment. An HVAC UV light helps you stay healthy ...Dec 23, 2023 · The Viqua VH410 is a powerful UV water purifier that can be used on water flow rates of up to 18 GPM. With a high UV output, this UV water filter is smaller in size, helping you to save space while providing an equal performance to a larger chamber. Price: $786. UV Dose Delivery: 40 mJ/cm². This week, we received a letter from a customer who wanted to know the best low-cost method for disinfecting spring water with ultraviolet light. We recommend a Wonderlight GN-15 for your application. These low-cost sterilizers are rated for 15 gallons per minute, are NSF-certified, and will completely destroy bacteria like G iardia and E. coli.Zolmitriptan: learn about side effects, dosage, special precautions, and more on MedlinePlus Zolmitriptan is used to treat the symptoms of migraine headaches (severe throbbing head...Jul 23, 2020 · One way to disinfect drinking water is to irradiate it with UV light, which breaks down harmful microorganisms' DNA and related molecules. At the time of the original study, most water... The rechargeable Katadyn SteriPEN water purifier uses UV-C light to kill 99.9 percent of protozoa (including diarrhea-causing Giardia and …Mar 28, 2023 · UV radiation occurs at three wavelengths: UV-A, UV-B, and UV-C. Water treatment is accomplished with UV-C light. The US Environmental Protection Agency says UV light with a wavelength of 250 to 270 nanometers is most effective at destroying bacteria, viruses, and protozoa. To treat water, electricity is discharged through mercury vapor in the ... A UV system consists of a chamber that contains a lamp through which UV light is produced. As the water starts to flow through it, the UV light blows up, breaking down the bacteriological contaminants to the level that they become incapable of functioning or reproducing. In a nutshell, there is nothing added or removed from the water, but it ... Switch off power and water. Switch off your water and unplug the system from your power supply. Insert the sleeve. If you’re installing the glass quartz sleeve at the same time as the lamp, insert the sleeve into the UV chamber. Use a cloth or protective gloves to avoid directly touching the sleeve – your fingerprints could tarnish the sleeve.After a good scrubbing, rinse the area with warm water and then allow it to dry completely. When it has dried, spray the area again with undiluted vinegar. This time, allow the vinegar to dry naturally rather than rinsing it away. This will let the vinegar work on any remaining mold spores and help prevent regrowth.Abstract and Figures. Ultraviolet (UV) irradiation is a common disinfection option for water treatment in the developed world. A sufficient dose …Phototherapy (UV therapy): Some skin problems (such as psoriasis) are helped by treatment with UV light. For a treatment known as PUVA, a drug called a psoralen is given first. The drug collects in the skin and makes it more sensitive to UV. Then the patient is treated with UVA radiation. Another treatment option is the use of UVB alone ...How to Maintain a UV Well Water Treatment System. Maintaining a UV well water treatment system is relatively straightforward. There are just a few points to consider: You need to regularly replace the UV light bulb – ideally once a year. You must clean the quartz sleeve that encapsulates the UV bulb as grime accumulates on it over time.Feb 15, 2019 ... UV water treatment systems are safe, effective and environmentally friendly with no chemical use or byproducts added to water..