Sunday, December 4, 2011

Pumps For Third World Farming

!: Pumps For Third World Farming

It takes my breath away when I see acres upon acres of wheat rolling like a sea of gold. It's a beautiful sight to see a large green patch growing in what used to be a desert. Tourists traveling the world where farming is a large part of the visual and economic landscape stare in awe at the sight of endless fields of corn, soybeans, peanuts, and wheat. What they probably don't stop and think is how all the water got there. During the planting and growing seasons you will see the many different methods of irrigation, as well as fertilizer and chemical application in use. Irrigation and fertilizer application has come a long way in the past century; they are used to help feed an-ever growing and developing world. With sophisticated electronics and computers controlling precise applications water and fertilizer use is efficient and accurate. In many irrigation and chemical application systems there is some pump operated by hydraulic, electric, "nature"-powered (wind or solar) or some other method. Unfortunately, sophisticated systems are not available everywhere they are needed.

Modern agricultural methods have been developed to obtain the highest crop yields possible and produce optimal profit. In parts of the world yield and profits play no part in agricultural development; the goal is to produce enough crops to sustain life. Much of that goal starts with simply moving water from underground or from a river to where it is needed, the field. It's hard to imagine a farm without the means to distribute water where it's needed but it's a big problem in third world counties. Think about how it would be if the only means of getting water to one's crop was through the simplest of pumps; the hand pump. You know, one that requires someone to stand and move a handle up and down until enough pressure is generated to force water from the source through a pipe. In many parts of the world the simple hand pump is still the only means for extracting water from the ground. From the pump, often, the water is placed into a smaller container and carried to the field. The process is being repeated over and over until as many of the crops as possible have been watered. Not the most efficient way to pump and transport water to the area of need.

This is, of course, how it was done in the past but this scenario is still being played out today in many parts of the world. The water source is available, either underground or some distance away from where it is needed, and it would only take a more modern pumping device to bring the water closer. Through the UN, charitable organizations, and many conservation groups, pumps are being made available to people throughout many third world countries. Proper equipment use and conservation methods are being taught daily. With better equipment available to move water from the source to the field the outcome is almost always the same: there is more food available, which means fewer people die of hunger.


Pumps For Third World Farming

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Friday, November 11, 2011

Reverse Osmosis Water Units Are Hard to Beat When You Need One - But, Do YOU Need One?

!: Reverse Osmosis Water Units Are Hard to Beat When You Need One - But, Do YOU Need One?

Years ago, if you knew someone who was dealing with sever water problems, like brackish water, the presence of excessive iron, or the terrible smell of sulfur in their drinking water, you knew how they wanted "something" to deal with it, believe me. And, years ago, they found a good solution in reverse osmosis water units. But, today, if you have stinky water, are on a municipal water system, or a chlorinated well; I've got good news for you. There are far less expensive selective filtration (SF) systems you can get that will do a better job and produce healthier water than reverse osmosis systems. In this article we will look at each system and how they work, and you can decide what's best for you today.

Reverse osmosis (RO) systems work by pushing water against a semi-permeable membrane with pores so small that only objects the size of a water molecule, or smaller, will pass through. As a matter of fact, the pores are so small they will even reject a large part of the water itself along with minerals and most contaminants. In most RO systems, the rejected water is simply wasted. Typically, this amounts to about two or three wasted gallons for every gallon filtered.

The fact that minerals are screened out is why they were so popular with people who were dealing with the things I mentioned above, like iron and sulfur. It is also the reason I implied above that the SF systems will produce healthier water.

Removing ALL the minerals is not a good thing. The body needs some trace minerals like calcium for strong bones and teeth and potassium for regulating the heart. The water become slightly acidic when all the minerals are removed and the acidic water will leach out some of the body's calcium to make calcium carbonate to return to a neutral pH.

Also, health experts also tell us that cancer cells seem to grow only in a slightly acidic environment and, for that reason, they feels there is a long-term health risk associated with drinking demineralized water.

When it comes to synthetic organic chemicals (SOCs), they usually have a smaller molecular structure than water, and will pass right through the membrane. These are compounds like herbicides, pesticides, etc. In order to get the dirty SOCs out of the water, RO systems must be used in combination with a carbon filter.

RO systems requires adequate water pressure to force the water against the membrane and, for some, this may call for the addition of an inline booster pump.

Another requirement of these systems is a storage tank, with a diaphragm to maintain pressure, because most RO systems produce less that one gallon of filtered water per hour. At that rate, without a storage tank, you simply wouldn't have enough clean water for bathing or doing laundry or much of anything else.

All in all, they are bulky units what with the filter, a storage tank, and, maybe, an extra pump. All of this often means more expense, usually requires a plumber and leads to extra maintenance cost somewhere down the line.

For most of us, using an RO system is like using a backhoe to get a little crabgrass out of your yard. Sure, it'll get the job done, but the ensuing pain won't be worth it.

The alternative system, selective filtration, is an excellent choice for any of these problems. It is what I use and I highly recommend it. You can check it out on my website below.

These systems are simple to use but state of the art in technology. As the water passes through them they filter it in stages, first with granulated carbon, then a carbon and multi-media block containing a sub-micron filter along with an ion exchange process.

You simply connect the incoming water line to one end of the filter and the outgoing water line to other end and you're done. No booster pumps, no tanks with diaphragms, no mineral supplements and, if you did it right, no maintenance issues.

It just does its thing, producing good healthy water complete with all the good, healthy minerals that originally came in with the water.

A SF system for your tap will run about 5. The RO system will start around 0.

Whole house SF systems cost under a ,000. The RO systems are put together in stages and will run upwards of ,000.

The bottom line is: chlorine kills. If you in any way doubt that, read my article: "Tap Water Facts-Chlorine in Drinking Water Makes Chickens Cry "Foul"" and, please, don't drink or bathe in chlorinated water on a long term basis.


Reverse Osmosis Water Units Are Hard to Beat When You Need One - But, Do YOU Need One?

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Thursday, November 3, 2011

Water Source Heat Pump Handbook

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Post Date : Nov 03, 2011 21:00:11 | N/A

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Thursday, October 27, 2011

Monday, October 24, 2011

Routine Pre-Winter Fall Time Maintenance of Hot-Water Heating Systems

!: Routine Pre-Winter Fall Time Maintenance of Hot-Water Heating Systems

Hot water steam heating. Clunk, clunk, rattle and roll in your home or apartments' heating pipes in the wall. Steam hot water heat may be noisy and a bit less convenient yet it sure tops the list in terms of economical heat and heating in the cold of winter. Yet few do the standard routine maintenance of hot water heating systems. And then these "experts" why they have high repair costs from home furnace repair tradespeople. And on top of that noisy and gurgling pipes. It is not very difficult or time consuming to maintain your water heating system or systems. And on top of that if your systems are professionally maintained upgrades can be worked in the process as well.

Rule number one is in the fall time, or late summer have the radiators and / or convectors drained or "bled" thoroughly of heating fluid coolants. At the same time practice number two is to have the circulatory pump lubricated. As a choice for simple lube jobs heating trades professional and heating engineers and plumbers recommend the use placing a few drops of oil - Number 20 electric motor (non-detergent) oil is the recommended professional grade. The oil should be squirted or applied to both oil cups - that is at either end of the pump apparatus and as well on the top of what is referred to as the "bearing assembly" or assemblies in the areas between the pump and motor bodies.

Next in line are the periodic and routine checks that any home owner, or maintenance engineer should perform. This is accomplished routinely by examining the standard format gauge which measures water pressure and pressures overall. These measurement devices - that is the pressure gauges can usually be found prominently mounted on either the front or side areas of your boiler or boilers.

What is a reasonable run of the mill pressure that is considered "safe" or at least "ok"? Water pressure measurements are not static or standard. The person or maintenance expert who is taking the measurement must always take into account the temperature of the water and its expansion. Acceptable cool water temperature water pressures of 3 lbs per inch are fine, yet this system when hot, in the middle of the cold January winter season could well register 30 lbs per square inch measurement due to expansion that occur to a liquid when heated.

Regardless, regular maintenance of hot-water heat and heaters is not a convenient option - it is mandatory and routine. Count on it.


Routine Pre-Winter Fall Time Maintenance of Hot-Water Heating Systems

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Saturday, October 22, 2011

Using Well Pumps - Mechanized and Hand Water Pumps

!: Using Well Pumps - Mechanized and Hand Water Pumps

Finding your own water is one core component of self-sufficient living. Aside from growing your own vegetables, having your own water source lessens your dependence on standard water systems. A necessary part of having your own water is a pump. These are often a mechanized pump that regularly brings water up from the ground and includes jet and submersible models for shallow and deep wells.

A shallow well typically uses a jet pump that is mounted by itself above the ground. This model draws up water through a suction motion, much like a straw when used by a person. These pumps, however, can only be used at a depth of 25 feet. Equipped with an electric motor, jet water pumps should be filled already through a one-way check valve to start working.

Deep wells can also make use of a jet pump. Two pipes are needed, however, with one being a 35-foot long tail pipe. These two work together with suction and pressure to bring the water to the surface. But, this method isn't entirely efficient for deep wells and, instead, a submersible pump often provides better results. A submersible model is placed underground and consists of a cylindrical well casing, of which the bottom half is a sealed pump motor connected to an above ground power source. Submersible water pumps bring water to the surface easily and will last the user 20 to 25 years.

While well pumps run automatically with an electric motor, what do you do when the power goes out? Having a hand water pump on hand is advised. Hand water pumps attach to a well pump and will provide water without electricity. A person can use a hand pump and expect the water to come out at three to five gallons per minute, from a depth of 300 feet. Because power can go out on occasion, having a hand pump around to supplement your mechanized well pump is advised.


Using Well Pumps - Mechanized and Hand Water Pumps

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Friday, April 22, 2011

Submersible Well Pumps Or Jet Pumps - Which One Do You Prefer?

!: Submersible Well Pumps Or Jet Pumps - Which One Do You Prefer?

Submersible well pumps are normally utilized to lift water from wells and even underground water resources. This device is basically used like an ordinary pump but the main difference is that this well pump is often submerged in the water. This submersible well pump is basically a long cylinder with a sealed motor at the bottom and often attaches to wires that are on top of the ground. This type of pump is very durable and does not require too much maintenance for several more years. Previously, getting water for your daily needs used to be a laborious task since water is oftentimes carried for several miles before it can be used. After awhile, water need not be conveyed from nearby stream or river since it can be pumped by hand. In time, well pumps mechanically convey water when your faucet is on.

Submersible well pumps are generally contained in iron cast casings caked with epoxy for water resistance. These are often bestowed with lasting lubricant and when required they can be taken out of the well for preservation. These pumps are likewise germane for varied functions and work best for deep wells and some other applications which are capable of pumping sewage. These are even beneficial on job sites and even homes with swamped cellars. Submersible well pumps are so handy and its design differs from one application to another. Regardless of how large is your well and how much water capacity you require, there are submersible well pumps that can cater to your needs.

Well pumps do come in varied types and each type has its own functions and specifications. The most efficient of these devices are submersible pumps which are extremely beneficial to draw water from deep wells to cater to our basic necessities. Jet pumps are also utilized to draw water and are normally utilized on shallow wells. These pumps functions normally by suction that draws water from wells into pipes that leads directly to your homes. These jet pumps usually utilize water to generate a vacuum effect so these devices need to be primed before it can function well. Today, jet pumps are seldom utilized as they need more electricity to function better than submersible well pumps. Variable speed well pumps are also getting popular since it simply need a little expansion tank and operate on a constant water pressure and is commonly seen in water systems in various cities.

Most of us never bother to give a thought how water gets into our homes specifically if we dwell in the city. Small towns do have a water system to offer water for everyone's necessities. Basically, it's only the people living in small rural places that rely so much on deep wells as a source of water who care too much on how their water systems work. Every home in each rural areas do have pumps that is the essence of their whole water system, otherwise, they will never acquire water for their day by day activities.


Submersible Well Pumps Or Jet Pumps - Which One Do You Prefer?

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Friday, April 8, 2011

Water Wells and Pumps

!: Last Minute Water Wells and Pumps purchase online

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Design and Build Safe, Efficient Systems for Irrigation and Water Supply

Water Wells and Pumps is a comprehensive guide to the essential theory and design of ground water structures, wells/tube wells, and pumps, with particular emphasis on problem solving and meeting the requirements of developing nations. It features thorough, up-to-date knowledge of the science and technology of water wells and pumps as well as allied appliances and applications.

This authoritative desk reference outlines the construction, operation, and maintenance of water wells for irrigation and water supply. It also presents the development and testing of tube wells as well as a variety of pumps, both location-specific. Using SI units exclusively, Water Wells and Pumps features:

  • Coverage of a variety of pumps, including those using nonconventional, environmentally friendly means
  • Examinations of ground water recharge methods, well rehabilitation, and animal-powered water lifts
  • Techno-economic evaluation of projects on wells and pumps
  • References and problems at the end of each chapter for research and educational use

Solutions for all problems related to designing secure, reliable systems

• Ground water resources development and utilization • Hydraulics of wells • Open wells • Tube wells and their designs • Development and testing of tube wells • Rehabilitation of sick and failed tube wells • Man- and animal-powered water lifts and positive displacement pumps • Variable displacement pumps and accessories • Centrifugal pumps • Deep well turbine and submersible pumps • Propeller, mixed flow, and jet pumps • Applications of nonconventional energy sources in pumping

More Specification..!!

Water Wells and Pumps

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