The idiom “to be in hot water” is known to be described as to be in trouble or a difficult predicament. Today, however, using solar thermal energy brings a whole new perspective “to be in hot water”. It’s a good thing and here is the news: Installing a solar water heater system is one of the easiest and most cost effective ways to use solar energy in the home. With so many options of solar energy systems available today, just about everyone can take advantage of rebates and tax credits, seeing a 100% return on their investment within 2 years! It just makes good financial and ecological sense.
There are 2 types of solar heaters: passive and active. Passive solar water heaters have a water container on the roof that preheats the water prior to entering the water heater in house. Active solar water heaters are a little more complex. On the roof there is a collector with an 80-gallon solar water heater tank. Glycol, a fluid that transports heat, is exchanged through the solar collector, which then passes through an internal heat exchanger in the 80-gallon tank.
Internet is represented as the ‘cloud’ and computing denotes software. Cloud computing refers to the delivery of technological resources to an alternate location. Cloud Computing is a prototype model where the data is permanently stored in servers on the internet and cached temporarily on clients. This includes desktop PCs, net cafes, laptops, palmtops, sensors, monitors, etc. A cloud can be held by a private or public enterprise. A public cloud is net-based service whereas a private cloud is a network or a data center that supplies hosted services to small groups.
Software-as-a-service envisages construction of hardware from the service. Cloud Computing enables infrastructure and services for the computer, as and when required which is called Infrastructure-as-a-service (IaaS). The computer paraphernalia includes hard disk, development platform, database, power or the entire software applications. Platform-as-a-service in the cloud is used when a bundle of software and product development tools hosted on the provider’s infrastructure. Developers create applications on the provider’s platform over the Internet. PaaS providers may use APIs, website portals or gateway software installed on the computer.
Why Apple Makes The Most Secure Smartphones To Protect Your Business
Like most people, you’re probably overly busy and overly interconnected online. It’s been said many times over that it’s a busy, busy world. If you’ve been shopping around for a new phone, or recently purchased one, you know how much you rely on it. You’ve invested a ton of time finding the best smartphone for business needs you’ve spent some large amounts of money on the phone and data plan.
So do you know how vulnerable it may be?
With the recent release of HBO’s documentary ‘citizenfour’, truth is, all our data that’s online is susceptible to being hacked or found out in some way. So whether you are looking for the best smartphone for business or personal use, you need to know that it is vulnerable to being hacked in one way or another.
More than ever, citizens must know about water conservation facts. Across the country water shortages have become a problem, even with watershed management practices being implemented on a massive scale. From the California water crisis to the Florida wildfires, there is a pressing need to preserve water. Not only must individuals conserve water, engineers and government officials must find new innovative ways to provide water.
Weather and Water Scarcity
Part of the water problem affecting a large swath of the country stem from La Nina, a weather pattern effecting continental weather on a massive scale. Another issue, is that of usage. Since the late 19th century, areas like Southern California have been using watersheds from other parts of the country to provide their supply via aqueducts. Unfortunately, population growth and demand is outpacing supply.
Water Conservation Ideas
So, what can a person anywhere in the country do for conserving water. The answers are actually quite simple. The average person uses about 55 gallons of water a day. That is far more than really necessary. By simply turning the faucet off while brushing teeth, limiting clothes washes and shortening showers, a person can save a substantial amount of water. Interesting, but those aren’t even the main culprits.
Landscaping is a huge drain on water conservation efforts. Everybody wants a green lawn, but are they really feasible in the desert? Places like California could greatly benefit by having property owners plant native species. Such plants are great at surviving drought and actually use less water than other species. Much of California’s shortage problems could be solved through this one simple solution.
Desalination to Increase Supply
For coastal states, desalination may be another option. Initial studies have shown this to be feasible both economically and ecologically. Unfortunately, the infrastructure requires an initial cost that has so far been a problem. Government subsidies and grants could help expand this method, giving coastal states a seemingly endless supply of fresh water.
Bureau of Reclamation
One of the least known government branches, it’s purpose is to make arid lands productive again. Located up and down the Western Coast and inland, over 60% of local water supplies come from the BLM. From the Hoover Dam to the Grand Coulee Dam, the BLM has been helping conserve and preserve water across the Western US.
While there are many organization currently working on the water shortages problems across our country, no magic bullet has yet been found. Brutal weather patterns have played a part in preventing drought stricken areas from receiving even normal amounts of rainfall.
Each person can help conserve water easily. Society will need to find new ways to solve 21st Century water shortages.
Revolutionary Use of Half Pool Covers
Every year swimming pools are wasting billions of gallons of water that can be saved. This paper addresses the problems with the current use of full pool covers and how half covers are the solution to pool water conservation.
It is well known that pool covers can reduce water evaporation by up to 95%, yet less than 30% of pools are using covers. The current limitations imposed by full covers for the most part boils down to two problems.
The Twofold Problem
First, full covers are difficult to stock. Full covers are bulky and must be stocked in 50 or more sizes requiring a sizable amount of floor space to have covers on hand for the myriad of pool sizes. If a size goes out of stock, the customer has to wait until the warehouse reorders another truckload of covers. This distribution and stocking problem severely limits the available stock on hand at any one time and prevents the customer from being able to purchase on demand.
Second, full covers for the most part fit only rectangular shaped pools. Covers initially come off the production line as sheets in rectangular shapes and are heat seamed together for various widths. They can be further cut into oval or round sizes, but nevertheless most of the pools built today are irregular free-form shapes and custom designs. In order to accommodate free-form pool shapes the customer many times must oversize the cover which means ordering an even larger than needed cover and cookie-cutting the cover to the free-form pool using the inside of the pool cove as a guide. This however can create a lot of waste. And how do you accommodate say an L-shape pool?
The twofold solution is that by using half covers, the number of cover sizes for distribution and stocking can be reduced from over 50 to just 4 half cover sizes (see below) which can be mixed-n-matched to work with almost all pools up to L-shapes solving both of the aforementioned issues.
Encouraging the industry to distribute half covers allows more people that ever to cover their pools. This practical way of using half covers revolutionizes the way covers are stocked and distributed, never incurring oversize shipping charges, and allows dealers to have covers in stock so pool owners never go home empty handed. By solving the problems preventing all pools to use covers, in the wake of water shortages that are only getting worse, it becomes a mandate to encourage all pools to be covered.
The Added Problem with Handling Full Covers
Another overwhelming limitation to full cover usage is that historically the only device sold for handling these covers has been the deck reel, an expensive bulky towel rack like device that sits at the end of the pool consuming valuable deck space. The problem with deck reels is that even if you cookie-cut your over-sized cover to fit your free-form pool, deck reels do not handle curvy free-form pool covers very well. Also if you have limited or no deck space where are you going to put your reel?
That said, as things stand today, only pools that can accommodate a deck reel have a solution for taking the covers on and off the pool, which is much like having invented breakthrough inflatable rubber tires for the auto industry, but no jack to remove them with on 70% of the cars.
For all those millions of pools without a jack, there is an innovative half cover rolling solution that can assist in the removal and handling of covers for pools that can’t use a deck reel. Because most custom free-form pools cannot use a traditional deck reel, many of those pool owners are already splitting their bulky pool covers to make them easier to remove by hand, and are doing so at the advice of pool shops who want to sell them a cover, but cannot sell them a reel. The half cover rolling device just takes this a step further, and makes it possible for custom free-form pool owners who want to purchase a cover to have a means to handle the cover too.
The Industry Change to Half Cover Distribution
As mentioned above to be expounded on here, distribution of full pool covers today is a nightmare for distributors because full cover distribution requires a multitude of covers sizes to support the many different size pools out there. Enabling custom shaped pools to use half pool covers, the plan is to revolutionize the way covers are distributed, lowering the cost for everyone and making stock on hand a top priority to solve the problem with special ordering or waiting for a cover to come in stock.
Four Sizes: Employing the revolutionary strategy to provide half pool covers will solve this problem to support the majority of pools under 20x40ft. By shifting to the four size distribution model, half cover sizes (14×14, 16×16, 18×18, 20×20) can be mixed and matched to each half of the pool. Furthermore, online internet retailers can ship the lighter more compact half cover sizes, avoiding dreaded overcharges due to weight, making shipping costs more predicable and controllable. For handling the covers, stores can provide the lightweight compact half cover roller device that currently ships coast-to-coast at a fraction of the cost of the heavier/bulkier deck reels which require two boxes. For anyone doing business over the internet, shipping lighter and more compact half covers alone is a remarkable dollar saving breakthrough.
Out of the Warehouse and Into the Stores: For retail stores, by reducing pool cover stock sizes from the multitude of covers sizes (that must be special ordered from the warehouse and delivered next day or longer if on back order) to just four sizes, covers can easily be stocked right at the store. With the new half cover distribution model, retailers can now have “stock on hand” for immediate purchase. Having stock on hand will substantially increase cover sales helping people more than ever not only have a warm pool, but most importantly conserve water and chemicals to help our environment.
Potential Market Expansion using Half Covers
Water agencies realizing the great value of pool covers to save water are beginning to offer rebates toward the purchase of a pool cover. For instance, Southern Nevada Water Authority (SNWA) offers a $50 rebate for pool covers. On the international stage the hard hit drought stricken Australia offers pool owners a $200 rebate toward a cover and roller system.
Getting the Word Out: In light of the pressing need for pool covers, the greatest need is to inform everyone that the concept of using “whole pool covers” to cover the entire pool severely limits the distribution of covers, and also requires the consumer to purchase an expensive and awkward deck reel, or remove the cover by hand emphasizing too that this solution only works on less than 30% of pools substantially limiting “use” of covers. Conversely, using the Split-Cover System, almost all pools can now use a cover, and is more cost effective for everyone resulting in higher sustainable sales for the industry overall.
A few years ago an alternative product called Sun Rings came into the market and many retail and online stores are carrying them, but a typical pool needs 10-15 rings at over $30/ea, the rings can bunch up at the end of the pool on windy days, are slow to fish out of the pool one at a time, and according to some retailers have thus experienced a higher customer return rate. On the other hand, the half cover system has a high customer satisfaction rate. It’s easy to see then that whole covers are too big, Sun Rings are too small, and half covers are just right.
Water Conservation Programs & Rebates
Current water shortages in parts of the nation, especially as mentioned in western U.S. areas like Las Vegas, are requiring communities to be on year round water restrictions and may potentially drive the increased demand and expansion of the pool cover market. Programs such as Water Smart in the Las Vegas area, and Water Sense sponsored by the EPA are dedicated to conservation. Additional programs by agencies offer pool cover rebates at participating dealers.
To do it’s part in the fight for water conservation nationwide, the half pool cover distribution model will greatly assist in supplying stores everywhere with just-in-time stock on hand. In this way over time we will be helping to save billions of gallons of wasted water nationwide, by facilitating the distribution of pool covers in a much needed and better way. It takes about only 200 pools using a cover to save an entire city tank of water because a pool left unchecked for a year can completely evaporate… and that’s a lot of wasted water!
Water Loss Calculation
Let’s calculate the number of wasted tanks of drinking water through evaporation by pools.
Sacramento: Using an average evaporation rate of 17,500 gallons/pool annually, it takes only 200 pools to waste an entire city tank of water. If Sacramento has over 50,000 pools, then Sacramento alone wastes 250 tanks of city water every year (or) 2,125,000,000 (that’s BILLION) gallons of water every year! What’s that make you think about when they start rationing water and your lawn’s going brown, while your bill’s going up?
The 17,500 gallon/annual evaporation figure is probably conservative (other reports site 1.5″/week). In Australia one study by Sealed Air Corporation states over 86,000 liters per year, or over 22,700 gallons annually evaporates from the pool. In Las Vegas, the average is 100 inches per year, yet all evaporation rates vary depending on a number of conditions.
Nationwide: If the nation has around 8.5 million inground swimming pools, then nationally we waste 42,500 tanks of water every year. This amounts to 42,500(tanks) x 3,500,000(gals) = 148,750,000,000 gallons of water annually in the US alone. Again, that’s BILLIONS!
Add an additional 30% for aboveground pools to approximate another 45 billion gallons of water evaporation, and we are looking at almost 200 billions gallons of water wasted annually in the U.S. alone. Aside from the water conservation issue, think about the cost of energy used to process and create that amount of drinking water.
Worldwide: Now think worldwide and one doesn’t have to ask if this is an issue that is rife to be addressed with a sense of urgency by all parties involved.
About the Rolling Device
The key to the innovative half cover solution is the Split-Cover System that rolls half the cover at a time, so almost all pools up to L-shapes are able use a pool cover. The patented system includes two individual free-floating rollers that are fastened directly to the underside of the buoyant half covers, each roller spanning the middle of each half cover. Custom locking fasteners are used that button the rollers to the covers and are removable if you wish to detach the covers in the off season. The lightweight free-floating adjustable length rollers span across the middles of each half cover (similar to how reels are placed across the middle of a round pool) but are directly fastened to the underside of the cover. The rollers are supported entirely by the buoyancy of the cover, so nothing attaches to the pool and is completely free-floating with the cover.
To operate the system, the customer just pops on a removable crank handle to one end of the roller tube to begin the rolling process. By turning the crank, the roller pulls both ends of the cover into the middle to wrap around itself right on the water, resulting in nice compact floating roll that, once the water drains from the end, weighs less than 30 lbs (about the weight of a 3 year old), so is compact and easy to handle. When not in use the device is completely hidden so is not an eye sore to your beautiful backyard pool setting that you paid so much for.
The innovative split cover remedy in short requires no deck space, accommodates almost any shape pool up to L-shape pools, is light/compact and completely hidden, and is easy enough to roll a cover in under thirty seconds. Switching to the easier to distribute half pool covers endeavors to help the millions of custom pool owners by providing them a practical solution and a choice they never had before, and moreover, to help us all do a better job at conserving precious water.
Conservation is the Goal
In summary, the half cover distribution model will be doing it’s part to conserve water and support the cause of many water starved communities (such as Las Vegas, Australia, and others) that are water rationing and promoting pool covers through rebates so consumers will do the right thing and cover their pools. Efforts to change the way pools are covered will revolutionize the distribution and stocking of pool covers, leading the industry to change it’s distribution model which will dramatically conserve precious water. In the half cover distribution world, retailers and wholesalers will never be out of stock utilizing the revolutionary “just in time” stock on hand distribution model. Retail stores will more than ever have an incentive and the ability to stock covers at the store for immediate sale, rather than special order from the warehouse requiring customers to come back for pickup, and wholesalers will move more inventory out of the warehouse and into stores. The warehouse will benefit because they can enjoy the same profit margins, but move stock immediately out to retailers rather than waiting for truckload deliveries in their space constrained warehouses. And the customer will be able to get what they want, when they want it so that everybody wins in the never ending fight for water conservation.
Questions and Comments
David Hoff, Inventor CEO
David Hoff is inventor of the patented Solar Roller, the only device for handling 1/2 pool covers. Half Covers are the secret for any shape pool to be covered. It only takes 200 pools using covers to save a 3.5 million gallon tank of city water.
So there’s a better way to stop the waste of precious city water, to use HALF COVERS rather than full covers. With half covers, almost any pool can be covered up to L-shaped pools. If there is a better way of doing something that saves billions of gallons of water, then in the wake of drought and water rationing, why aren’t all pools being covered?
The world is experiencing water shortages on all continents and water conservation is more and more important. One of the vital human needs, clean drinking water, can no longer be relied on to be available forever, even in regions with seemingly sufficient rainfall. Safe drinking water is already scarce in many places and not only in the arid, desert Southwest.
Over the last five years, according to an US Environmental Protection Agency 2008 report, nearly every region in the US experienced a shortage of water. These shortages are either due to groundwater being withdrawn in amounts that exceed the rate at which it is being refilled, or to municipal drinking water systems that are not large enough. Many towns already impose limited outside watering and irrigation for gardens and lawns. The answer to insufficient water supply systems is water conservation, not building a bigger and better distribution system and adding another waste water treatment plant.
Large amounts of water are consumed to sustain our way of living. The production of the goods we so quickly buy on a daily basis uses huge amounts of water. And we mostly are not aware of this. The list below gives a few examples of the water necessary to grow food, make paper or clothing.
1 cup of coffee: 37 Gall. Does not include washing the cup
1 pound of potatoes: 108 gallons
1 slice of wheat bread: 11 gallons
1 pound of beef: 1,860 gallons (yes, that IS correct)
1 cotton T-shirt: 713 gallons
0.6 gallons for one sheet of recycled paper. Up to 8 gallons for new paper
The above list was found at http://www.waterfootprint.org, a great educational resource for water use and water conservation.
Daily we consume hundreds of gallons of water without being aware of it, because we do not see that water. Reducing the water used for producing our food, paper, clothing, etc is essential to accomplishing successful water conservation. First though, we must know about this and get educated about where and how water is used. Once we know and understand, we can take the necessary steps.
So how can you conserve water in the home? For example, when you recycle paper, in addition to saving trees, you also drastically decrease the quantity of water used. Or, you can consider keeping that T-shirt that might be out of fashion but is still in good condition, instead of buying another new one. That way you can save over 700 gallons of water. Ask yourself if you really must I have a 16-oz steak for dinner, given that you already had 2 eggs for breakfast at 53 gallons of water each, and a 1/4-pound hamburger at lunch time which used about 500 gallons of water?
And how can we conserve water outside the home? Millions of gallons of precious water are wasted by excessive watering of lawns. Too many irrigation systems can be seen in operation in the middle of the day, with the sun beating down, when nearly all of the water will evaporate without it ever reaching the roots of the plants. A lot of homeowners water their lawns too often as well, wasting water and ending up with weak plants, that have shallow roots. A lush green lawn in arid climates is not possible without wasting, yes wasting, an unbelievable amount of precious water. Commercial farming or landscape watering systems are also culprits by using automatic irrigation systems on rainy days or at noon.
Humans, animals and plants require water to survive. It is urgent that we begin conserving water right now so that we humans, as well as animals and plants, can thrive. What we do as individuals and as society as a whole, has a immense impact. How we live, and the daily choices we make, either waste water or help to support water conservation.
Many companies have started to sell water conservation kits that are designed to help homeowner’s conservation efforts throughout their homes. With more and more people becoming aware of the need to conserve, these kits are being offered at just the right time. There are many ways that we can conserve water in our homes and these kits make it that much easier. These kits were designed to help homeowners cut their utility bills, and minimize their daily impact on the fresh supply.
Included in these conservation kits are toilet water savers, bathroom aerators, showerhead, kitchen aerator, flow meter bag and leak detection tablets. While some kits may offer different items, this is typical of what is commonly included in conservation kits.
A toilet water saver is used to cut the amount of water that is used in your toilet. By utilizing a toilet water saver you can save up to one gallon per flush. This will reduce the amount of water you use every time you flush by up to 75 percent and will not restrict the flow of water.
Installing a bathroom aerator on your faucets will also greatly reduce the amount of water you and your family use on a daily basis. Aerators will cut the amount of water used by your bathroom faucets in half, which is great for the water supply and great for your monthly water bill.
The shower head that is included offers you high pressure while saving water at the same time. A common low flow shower head only uses 1.5 gallons of water per minute. By installing a low flow shower head you are not replacing power for conservation, many of these types of shower heads still offer a high strength spray while also saving water.
A flow meter bag is something that is easy to use to detect water wasting sources throughout your home. Also included in many kits are leak detection tablets, which will temporarily dye the water in your house so that it is easier for you to see if any colored water is seeping into areas where it shouldn’t be. These tablets are totally safe to use and are biodegradable. By finding leaks and cracks in your pipes, you may be preventing a larger problem if gone unnoticed.
Purchasing a water conservation kit can help save water and money when used properly and placed throughout your home. Water conservation kits are a small investment if it will help your family become more knowledgeable about saving water.
When it comes to water conservation and energy conservation, both categories go hand in hand with each other. By conserving water, we are in fact conserving energy as well. It takes a lot of energy at the water treatment plants to take the water from the sewer and convert it into drinking water. So by practicing a couple of water conservation techniques in your home, you are effectively conserving energy usage as well. In this article, we will discuss ten techniques you can use around your home to help conserve water.
1. Put a brick or plastic bottle filled with water in your toilet tank. By putting a plastic bottle in your toilet tank, you cut down on the amount of water that goes down the toilet every time you flush. Older toilets can hold up to 5 gallons of water. That’s 5 gallons every time you flush. It is not really necessary to have that much water to flush the toilet. Just make sure you have at least 3 gallons of flush water to ensure the toilet flushes properly.
2. Insulate your water pipes under the sink. It is fairly easy to insulate your water pipes under the sink by wrapping some fiber glass insulation around the white pipes. Be sure to wear gloves and a mask over your nose and mouth when doing this because the fiber glass can get in your skin and lungs, and that can be very bad.
3. Check for water leaks by using the water meter on the side of your home. You can find out if you have any water leaks in your home by making a note of the meter reading when you know no one is using the water in the house for the next two or three hours. Come back and check it after a couple of hours and if the meter has changed then you know there is a leak somewhere.
4. Do not leave the water running while brushing your teeth. The dentist tells us to brush our teeth for 2 minutes. Normally it does not take 2 minutes to get warm water flowing in the sink. Get the water warm and then turn it off when brushing your teeth. Trust me it will still be warm in 2 minutes.
5. Fill the sink with water when shaving. Instead of rinsing your razor off with running water, fill the sink with some water and shake your razor in the sink to rinse it off. This works just as well as running the razor under running water, and will save you a couple of gallons every day.
6. Use your dish washer when ever possible. It seems kind of hard to believe, but you can save water by running your dish washer instead of washing the dishes by hand. This is also true with your washing machine. I’m not suggesting you wash your clothes by hand, but washing your clothes when you can run a full load only will help conserve water usage.
7. Rinse vegetables in a pan of clean water. Rather than rinsing off your vegetables before your prepare food under running water, fill either a pan or your sink with water and dip your vegetables in the bowl of clean water.
8. Put in water saving shower heads and take shorter showers. Nobody wants to here it, but obviously taking shorter showers will help conserve lots of water. Also, many new shower heads help limit the amount of water needed to effectively rinse off your body in the shower.
9. Check your toilet for leaks. It is very easy to test your toilet for a leak. Simply put some food coloring in the toilet tank and wait about 30 minutes. If you see the water in the toilet bowl changing color, you might have a leak in your toilet.
10. Make sure your kitchen faucets and bathroom faucets have aerators. Aerators do pretty much what it sounds like. It adds air to the flow of water coming from the faucet to help reduce Gallons per minute going through the faucet while retaining the rinsing power of the faucet.
By following these simple techniques, you can rest easy knowing your doing your part to help conserve water.