Ultraviolet water purifiers are used by many public treatment facilities to reduce bacterial content. Ultraviolet systems have been adapted for use by homeowners with private wells that have a high bacterial count.
Similarly portable ultraviolet water filters are now available for people who are camping or traveling abroad.
But even though Ultraviolet purifiers can reduce bacteria to levels that don’t cause illnesses, there are some pathogens that are resistant to UV treatment. They are known as cysts.
Cysts are parasites in a very early stage of development that can only be neutralized by boiling or by filtering them out. They are greater than a micron in size. So, any purifier that filters down to at least one micron will remove them. Some of the better kitchen units filter down to a half micron.
Depending on where you live and the quality of your supply, you may need both ultraviolet water purifiers to kill common bacteria and sub-micron filtration to reduce cysts.
The amount of cysts in the environment depends on the year round temperature, the number of animals that are in the area and the season of the year.
In the US, public treatment facilities test for them on an occasional, but not a regular basis. The EPA has said that regular testing is impractical. They warn that at-risk individuals should make every effort to protect themselves from this type of infection.
Those that are most at-risk include infants, toddlers, the elderly and those with weakened or absent immune system function.
In addition to cysts, many homeowners must worry about the chemicals that are used to kill bacteria and control algae growth in the pipelines. The most popular chemical for this purpose is chlorine, because it is cheap and readily available.
Chlorination causes the release of byproducts known as THMs. Exposure to THMs greatly increases the individual’s cancer risk.
Ultraviolet water purifiers serve some purposes, but like reverse osmosis and distillation devices, they cannot kill cysts, nor can they remove chlorine or THMs.
If you do have the need for ultraviolet purification in your home, you should know that recent studies done for the EPA showed that all methods of disinfection cause the production of THMs, even ultraviolet.
Other studies have shown that THMs become airborne when chlorinated water is heated for showering, cleaning, cooking or other purposes. Well-insulated homes have some amount of chloroform gas (a known carcinogen and a THM) in the air.
So, if you do have ultraviolet water purifiers in your home, it is a good first step to having the cleanest water in your home, especially if you get water from a private well. This is because private well owners are responsible for their own water treatment, not the local water authority.
However
, be aware that there are better water purifiers available which are capable of removing both chlorine and THMs. Some top of the line kitchen and shower water filters are capable of removing both these type of contaminants.
Posted June 12th, 2010
by admin
Industrial water filtration systems target specific contaminants that would be problematic for a specific industry. For example, photo processing requires deionization.
Iron reduction is important for many industries. Softening and reducing mineral content is necessary for water to be used as a coolant. One of the most common methods used for these purposes is reverse osmosis.
At one time, reverse osmosis was the ultimate in technologically advanced purifiers. It was used by industry and well-owners alike to remove large particles and greatly reduce mineral content.
There are many different methods available today, although reverse osmosis is still the method of choice for waste water treatment. It is however expensive for that purpose and many industries choose other treatment methods.
Reverse osmosis industrial water filtration systems have been adapted for use by homeowners serviced by a public treatment facility. This adaptation was created as a way to address cyst contamination.
Cysts are like parasitic eggs. They enter the water supply without notice and cause diseases similar to food poisoning. To an at-risk individual, this type of infection can be deadly.
For example, a person with AIDS would not have the ability to fight off the infection. A person being treated for various types of cancer would be in a similar situation.
Cysts are problematic because public disinfection methods will not kill these hard pathogens. They can only be filtered out. Most large scale industrial water filtration systems could not remove them because it would reduce the flow and pressure too greatly.
The only effective choice for cyst reduction is a “point-of-use” or in-home filter that is certified to filter down to one micron or better.
Reverse osmosis is one recommended product but the systems are very expensive and do not address other issues faced by homeowners on a public waterline. There is no chemical reduction with this method. Chlorine and chlorination byproducts would still pass through.
Today’s homeowner can use inexpensive home water filtration that can remove some of the most dangerous contaminants from their tap water. Now you can have safe, pure water for cooking, drinking and showering.
Some of the better home purifiers on the market include sub-micron filtration, which is similar to, but much less expensive than reverse osmosis. These purifiers also include granular carbon and multi-media blocks that trap chlorine and other chemicals on their surface.
The best home water filter cartridges have a reasonable lifespan, typically 6 months before replacement filters are needed. Water that has been cleaned in this way is safe, pure and good tasting.
The purity is also far better than what you will find in bottled brands. Bottling companies use industrial water filtration systems, which cannot address the issue of cysts or chemicals.
Additionally, the bottles leach chemicals used to create the plastic into the liquid. Those substances act like hormones within the human body
, interfering with the production of endogenous hormones and disrupting the endocrine system.
You don’t need to go to the expense of buying industrial water filtration systems to install in your home. Getting a household water filter is a better option.
Posted June 8th, 2010
by admin
Posted June 4th, 2010
by admin
Solar water heaters are quickly becoming common household product as consumers realize the benefits of going green. Still, the average user doesn’t understand how they function and which type would be suitable for his household needs. Because of these ambiguities, it might happen that the solar water heater you are using isn’t working well for you. The problem, most often, is not in the device but in your inappropriate selection. Read on to appreciate the various kinds of solar water heaters available so you can select the best one for yourself. Solar heaters typically have solar collectors and storage tanks. Mainly, these systems are classified as active solar heaters and passive solar heaters. Active heaters include circulating pumps so they usually cost more when it comes to maintenance. Passive solar water heaters, on the other hand, do not need pumps as they depend on natural circulation; hence, they are less of a hassle when it comes to maintenance and result in less maintenance expenditure after their installation.
Active solar water heaters are available in two different types: direct circulation systems and indirect circulation systems. Direct circulation systems heat water inside a storage tank and the circulating pumps move it forward into the house. But these systems aren’t successful in areas where water gets frozen often. Indirect circulation systems were introduced to solve this problem; these include a heat exchanger filled with a non-freezing fluid. Solar energy is used to heat this fluid, which in turn passes heat to water running inside your house.
Passive water heaters are low-priced but are less efficient that active heaters. They too come in two types: the integral collector storage (ICS) system and the thermosyphon system. Like direct circulation active systems, ICS systems work well in warmer climates where water freezing is not an issue. Thermosyphon systems, on the other hand, are designed to work in all temperatures. When the temp. hits the freezing point, water is brought to a regular water heater. Thermosyphons are generally more reliable than ICS systems but also come with a higher price.
Heating systems aside, solar collectors come in a few common types: flat-plate, ICS and evacuated-tube solar collectors. ‘Flat-plate collectors’ are made of dark absorbing plates within a tiny insulated area that keeps the plates safe from all outside events. Sometimes, they come without these insulated containers when they are needed for outdoor usage like heating a swimming pool.
‘ICS collectors’ often have one or multiple tanks within an insulated material and have a heat absorbing outside, so that both this and the tank can be inside one box. Water gets warmed as it passes through these tanks and is brought to a regular water heater before being brought through the home. These are feasible only in places where outer pipelines don’t get frozen during winters. While readymade ICS heater-collector systems are available in markets, several people build their own because they are rather simple to create.
Finally, the evacuated-tube solar collectors consist of translucent glass pipes that run parallel to each other. A meta-absorbing pipe is connected with a fin in such a way that the energy absorbed from the sun is conserved inside for a longer duration.
Having read all the details about the various types of solar water heaters and collectors
, now you can choose one that suits your needs perfectly.
Posted May 26th, 2010
by admin
Higher standby loss, wastage of energy, high energy bills and necessity of large space are major problems that have always existed in conventional tank-type water heaters. Manufacturers realized these potential problems and brought in tankless water heaters to satisfy consumer needs. Since many households have been running on conventional tank-type water heaters, they are still common even now. One reason might be unawareness about how tankless water heaters function. We will skim through its functionality briefly in this short yet informative article.
The main concept behind these heaters is provision of hot water on demand only. There exist multiple kinds and they’re capable of using different kinds of energy sources to warm water up: from electricity to gas. Because these types of hot water heater do not use a tank, they only warm water as it is needed. The main component is a heat exchanger that gets switched on whenever the connected faucet or shower is opened. For this purpose, a flow-activated switch is used that detects the flow of water inside the pipeline. Two types of heat exchangers are used usually: gas-powered burner and electric coils. Gas-fired ones, however, are able to heat faster and more efficiently.
Tankless hot water heaters come in different sizes; the size is dependent on several things: the amount of water that has to be heated in one minute; the temperature of water when it goes into the heater; and lastly, its preferable temperature that you want at the outlet. Unlike tank-type storage heaters that keep water at the desired temperature using a thermostat, tankless heaters heat water on demand; thus the first water that comes out of the spigot after turning it on warms gradually. In this way, you’ll have to waste water before the hot water is ready. How long it takes for hot water to come out after turning on the spigot is called ‘lag time’. Two types of tankless systems are available. The 1st is the ‘point of use’ water heater. It’s usually compact and supplies one output site, such as a bath. Since it is installed in close proximity to the water outlet, a point-of-use heater typically has a lower lag time and less water is wasted. Since it is used to supply hot water at a single outlet, electric-powered fire exchangers can do the job quite well. Therefore, most ‘point of use’ system use electricity and, thanks to their compactness, can be stored inside a small area.
The second type, whole-house tankless water heater, is able to heat a significantly greater amount of water per minute and can cater hot water at various outlets simultaneously. Because they require additional energy to warm great amounts of water, they commonly are powered by gas. With bigger homes, it’s possible that you’ll require more than a single water heating system. Showers typically necessitate addition of another whole-house tankless system because they usually need more hot water than ordinary taps. Due to their extra capabilities
, whole-house heaters cost a lot more than point-of-use systems.
Posted May 11th, 2010
by admin
As the United States and the world at large enter a recession, most families are looking for easy ways to save money without having to hurt their lifestyle. It turns out that one such simple method is clear – literally. Thousands of families are spending hundreds of dollars every year on water. Bottled water is many times more expensive than water filtered from your tap, so this is an expense you can eliminate easily. Best of all, water filters are also more attractive than water bottles and actually produce safer water.
How much do you think you spend on plastic bottled water each year? It is almost always more than you think. In a recent pricing study, a US supermarket sold a popular brand of bottled water for $1.19 per twenty ounce bottle. In this study, the same bottle of water was typically sold for $1.75 in vending machines. 90% of the expense of bottled water is in making the bottle itself – all of which are soon disposed of.
The majority of dietitians recommend that people drink eight 8-ounce glasses of water each day. Even if we assume that only half of that comes from bottled water, that could still mean that a person is spending up to $1,022 each year bottled water. In an average-sized family, the amount of money wasted on bottled water can be several thousands of dollars each year. Just think of all the things you could do with that money! Luckily, the use of water filters can get that money back for you to spend however you see fit.
Water filters are a very affordable option. Water itself is amazingly cheap. Tap water costs only two-tenths of a penny per gallon. Adding in a step of filtration only adds a small amount of cost, since the same water filter can be used for hundreds of gallons of water.
Plastic water bottles tend to be ugly and to take up a lot of space. When you think about it, it is really quite silly how so many people take up valuable space in their kitchen pantries to store bottled water. A water filter only takes up a few square inches, and can come in many colors and styles to match your existing sink decor.
Some people drink bottled water because they do not trust that tap water will be safe. This is a very common misconception, but it is also very misinformed. The Food and Drug Administration does not regulate bottled water, but it does regulate tap water. Tap water is at least somewhat safe, but you have no such guarantees with bottled water. If you put your tap water through a filter, you make it even safer by removing metals and contaminants.
Now that you know a little bit more about the relative benefits of using water filters versus bottled water, I hope you can go out and start making wiser consumer choices. Remember that water filters save money, look better
, and are safer as well.
Posted April 24th, 2010
by admin
As a swimming pool owner the last thing we need is a pool that leaks water. Is the pool leaking or is it evaporation, this is always a question we ask. Here are a few tips on checking your swimming pool for leaks before you make a call to a professional leak locating company.
Try the bucket test – Shut the pool down, turn the pump off and do not allow it to turn back on until it is turned on manually. Use a 3 or 5 gallon plastic bucket, fill the bucket approximately half full and mark on the bucket the water level. Place the bucket on the top step of the pool and mark the water level of the pool. Evaluate both bodies of water after a 24 hour period and note the amount of drop in both the plastic bucket and the swimming pool. Upon checking the bucket and the pool measurement marks, if both loose about the same amount the water loss is most likely evaporation. If the pool goes down considerably more than the bucket the pool may have a leak.
Look and check the many places that a leak can occur in a swimming pool.
o Skimmer
o Lights
o Around the return lines
o Main drains
o Tile Lines
o Corners where waterline tile comes together
o Equipment Area – Check pump, filter, chlorinators, valves and plumbing
How can I tell how much water the pool is leaking?
This is an easy formula to check.
Inches Of Water Loss x .62 Gallons / Inch x Square Footage Of The Pool Surface Per Square Foot
Let’s try an example of a pool losing 1 inch of water per day.
15 Ft x 30 FT Rectangular Pool = 15 x 30 = 450 Square Ft of Surface Area
1″ x .62 x 450 = 279 Gallons of Water per Day OR 11.63 Gallons per Hour
Let’s try another example of a pool losing 3 inches of water per day.
14 Ft x 28 FT Rectangular Pool = 14 x 28 = 392 Square Ft of Surface Area
3″ x .62 x 392 = 729 Gallons of Water per Day OR 30 Gallons per Hour
Sometimes if may take several days to determine if a pool is actually leaking, many tests and monitoring of the pool level. Remember that once the bucket test has been done with the swimming pool pump off and results are determined; redo the test with the bucket while the pool pump is operating as normal. When both of these tests are used they can be very helpful to determine of the actual pool water leak is in the main structure of the swimming pool or possibly in the piping or plumbing of the pool. Many times when the pump is operating, the pressure of the water forces the water out of a plumbing leak causing the leak in the pool to be much greater. Leaks are many times very difficult to locate and repair
, using these suggestions can help to locate and resolve your pool and spa leak situations.
Posted April 9th, 2010
by admin
Reading household water filter reviews may not be your best source of information for buying one. I have looked at numerous comparison websites and some of their recommendations are not really the best choice in terms of contaminant removal, filter life or price.
Why pay $300 for a purifier, when you can get one that does the same job for around $125? $300 is the cost of the Ever-pure under counter H-300. That’s easy to remember, because the price and the model number are the same.
Ever-pure is one of the products that are recommended by National Geographic’s household water filter reviews. I love National Geographic and I make every effort possible to live a “green” life. But they only compared seven brands in their survey, when there are hundreds on the market.
The consumer’s best guide to selecting an effective home purifier is to compare certifications and product performance data. The best systems are certified by the National Sanitation Foundation (NSF). This organization verifies that a filter’s claimed contaminant reduction capability is accurate.
Water purification systems that are also certified by a reputable independent lab like the Underwriter’s Laboratory, can also be trusted.
There is a third source for certification; the California Department of Public Health. California has the most stringent water filtration testing in all of the States. Filters certified by them are also of good quality.
If a water filter seller provides certified product performance data, it should list the contaminants that the filter will remove and the amount of reduction.
Bear in mind that not all contaminants have a set level by which they must be reduced. Ever-pure for example, states that lead is reduced to levels below the “Federal Action Level” (FAL). This level is an arbitrary figure established by the EPA.
When public treatment facilities report that the level is higher than the FAL, they are required to make efforts to address the problem, although this requirement is not actively enforced.
Of course, even if one consumes small amounts of lead over a period of time, death won’t be sudden but it could pose serious health risks. Lead is particularly hazardous for pregnant women and children.
One of the top filtration systems on the market costs around $125 and can remove lead, chlorine and synthetic contaminants. It is also certified to NSF and California health standards and provides complete product performance data.
Getting a home water filter is a no-brainer. Ultimately, you are doing yourself and the environment a favor, by filtering all of the water that comes into your home
, so that contaminants do not end up back in the environment.
Posted April 2nd, 2010
by admin
Wall fountains are easy and charming ways to bring some class and characte to your home or garden. But there is also a lot of information circling around the internet that suggests these water features are host to a variety of health benefits, as well. It has been suggested that fountains improve physical as well as mental wellbeing, but does this claim hold water? Can a fountain really combat disease?
The problem with these claims is that there is not a lot of hard evidence to support them. The unfortunate thing is that very few impartial studies have been conducted over the years, and those that do often get very little publicity or merit in the scientific community. Some experiments have been conducted, however, that show that there is in fact a correlation between wall fountains and personal health. These water fountains may not “cause” improved wellbeing and healthfulness, but they certainly don’t hurt, and may even help… on a small scale. Now we ought to take a look at some of these water fountain health claims.
Some people laud the importance of “negative ions,” which are produced by water fountains, and say that these particles improve general respiratory function and strengthen your body’s immune system against certain diseases and mental issues.The so called “negative ions” are inappropriately named, as they are not actually ions at all. They are actually a number of negatively charged oxygen and/or nitrogen molecules that are surrounded by water molecules. Studies have shown that these “ions” don’t actively clean the air, nor do they produce any great benefits. However, the negatively charged particles in negative ions tend to attract (and subsequently bond to) bioaerosols and dust particles in the air. The bond allows thse particles to fall to the floor after damping them, which makes them more dense. This does limit the antagonistic effects of common air pollution, which theoretically could lead to improved breathing and air cleanliness. While direct evidence is a little lacking, anecdotally negative ions actually do seem to improve air cleanliness, especially in contained spaces. Your home or office will surely enjoy improved air quality, on a small scale, with the installation of an indoor wall fountain.
Some people have stated that wall fountains may significantly reduce stress, and in some cases, it enhances concentration. I reiterate that there have been few formal studies to prove this, but there is a substantial store of anecdotal evidence. Naturopathic medicine, which emphasizes natural cures for common ailments, implies that sitting by a waterfall, or even an active water fountain, may be effective treatment. Some evidence exists that implies some water fountains may facilitate clear thinking and general mental satisfaction, although listening to a fountain while breathing in the fresh air may not immediately enhance your cognitive capabilities. As previously suggested, these “ions” do have a proclivity for removing malicious airborne agents and bioaerosols from your air, and simultaneously producing more oxygen particles. This means that your brain will be allowed more oxygen with every breath you take, which in turn may mildly improve awareness. When it comes to alleviating stress, I think, there are truly few better ways to set your mind at ease than to install a wall fountain. Natural sounds have a soothing affect on the mind, in a similar fashion to classical music or gentle lullabies. It is not uncommon for business owners to put wall fountains in their office, as this seems to slightly improve employee morale and alleviate stress. I believe that this correlative relationship is fairly assuring, even if it is evident that no “causal” relationship actually exists.
So it seems that, while the boasts and claims made by fountain manufacturers and online salespersons may not be completely without veracity, they do tend to be deficient in formal scientific proof. But there does seem to be an anecdotal precedent for a correlative relationship between water fountain ownership and overall improved health. In the end, a wall fountain will not cure any disease, though it may modestly help to prevent ailment
, and will likely improve your overall wellbeing in a very subtle manner.
Posted March 24th, 2010
by admin
With the wave of contaminants that have hit our water supplies over the last couple of decades, more and more people are starting to wonder how do water filters work to protect themselves and their families.
But in order to get an understanding of how they work, you need to be clear on the kinds of contaminants that are present in your water supply and the features of a home water filtration system.
With regards to the chemical content of our water, there are around 80,000 chemicals used in industry, that can be make their way into in our reservoirs. Any combination of these chemicals could be in the water that you are drinking right now.
Over 2,000 of these chemicals have been documented as known carcinogens. So, how do water filters work to effectively remove these types of contaminants?
They work by utilizing a combination of an activated granular carbon filter (gac) and a multi media block. These two filters trap the chemicals, and turn them into solids, which are unable to penetrate the film across the filter face.
Apart from chemicals, there are also microscopic bacteria and parasites that are in your drinking water as well. These may cause stomach problems if ingested.
Contrary to what many people believe, not all of the microbes and parasites in your water supply are eradicated by the use of chlorine disinfection. Many still survive to pose a danger to the health of you and your family.
And how do water filters work to eliminate the risk of waterborne sicknesses affecting your family?
Through the use of what is known as a sub micron filter, all of the parasites and cysts become effectively blocked in much the same manner as with the earlier filters I talked. The exception is that the microbes are already in solid form, so they are basically trapped.
You should also be aware that toxic metals, such as copper and lead, can find its way into your tap water.
These metals generally find their way into your tap water by leaching off the plumbing fixtures that transport water throughout your house. So potentially harmful are these chemicals, that even in small quantities, ingesting lead contaminated water may cause neurological damage.
How do water filters work in order to remove the threat of heavy metal poisoning?
There is a device used called an ion exchange unit, that magnetizes the metal traces and then replaces them in your water with potassium and sodium. This filter will also keep the pH balance of your water perfect so that you water will taste great every time.
How do water filters work? They work by utilizing the 3 tiered filter system mentioned before, which pays attention to all kinds of drinking water contaminants at the same time; this ensures that nothing gets by.
You get obtain this tiered system in a high quality counterop or undersink drinking water filter. Very importantly
, these purifiers are affordable and will help maintain the health and safety of you and your family.
Posted February 7th, 2010
by admin