External vs. Submersible Pumps. Which one should you Use?
For many people, it's never been a question of whether to use a submersible pump vs. an external pump because most people have smaller ponds and are used to just using a submersible pump. They're easy to install, and are pretty reliable - so why even consider an external pump?There are a couple of reasons...But before we go into that, let's briefly talk about the benefits of submersible pumps first. For obvious reasons, a submersible pump is named as such because it is designed to be placed in the pond, and submerged under the water. These are the easiest of all pumps to install, just drop them in the water and plug them in - and you're ready to do.
Of course, you might have some quick plumbing to do, attaching a hose to the waterfall or to a submersible filter (another article entirely), but other than that - that's pretty much all there is to it.Submersible pumps range in size or gallons per hour, from 50 GPH all the way up to 50,000 gallons per hour, but for most ponds - pumps anywhere from 350 GPH to 4000 GPH will do just fine...So why might you also consider an external pump instead?Here are a couple reasons. First, external pumps can much more energy efficient. Now, a typical swimming pool or spa pump won't usually fall into this category - so be careful not to compare apples to oranges! Pool pumps can also be huge energy hogs, so always check the amps to compare different pumps together. Anything over 10 amps will draw a significant amount of $$ out of your pocket every month in electrical costs.The external pumps that we are talking about are designed specifically for ponds and water gardens, and are engineered for energy efficiency. I'm not sure why those folks in the swimming pool and spa industry haven't figured out how to this yet, but I'm sure they'll catch on sooner or later.
I'm inclined to think the average pond owner is a bit more intelligent than the average pool owner. Why else would someone choose a pool over a pond? Unless of course you have both, but at any rate - let's just assume that we're talking about external pond pumps here.For comparison, a typical 4000 GPH (gallons per hour) submersible pond pump will typically draw anywhere from 10 amps all the way up to 15 amps, depending on the brand. This can really burn a hole in your wallet (or pocketbook) on a monthly basis, and in some parts of the country will run you $50 - $70 in energy costs.In contrast, a comparatively rated external pond pump like the William Lim Wave I External Pump. It is rated at 4380 GPH at 3.47 feet of head, and only draws 2.3 amps - that's 3/4 less energy consumption than the submersible pumps.When you start getting into larger ponds, 1000 gallons up to 20,000 and above - it's usually a good idea to look into these more energy efficient pumps. For example, the 3/4 HP Dragon pump will move 7,770 GPH at almost 5 feet of head (and under pressure) and only burn 6.2 amps!
That's impressive.External pumps are almost always better for using with pressurized external filters as well, as submersible pumps are not designed to handle all the back pressure.
Other benefits of using an external pump include:
- Easy to clean without getting your hands messy
- Come with a removable leaf trap which clog less often
- Easy to hook up to bottom drains or surface skimmers
- Generally last longer, and easier to repair / replace parts
Although they cost a little more on the front end, the energy savings alone can often more than offset this increase in cost during the first year of use alone.To read the full article, click here:https://www.macarthurwatergardens.com/Newsletters/September2004/external-vs-submersible-pumps.shtml. Brett Fogle is the owner of MacArthur Water Gardens and several pond-related websites including macarthurwatergardens.com and pond-filters-online.com. He also publishes a free monthly newsletter called PondStuff! with a reader circulation of over 9,000 pond owners. To sign up for the free newsletter and receive a complimentary 'New Pond Owners Guide' for joining, just visit MacArthur Water Gardens at www.macarthurwatergardens.com.brett@macarthurwatergardens.com
Patent Call for a New Digital Rights Management System
Intellectual Property Rights is a key consideration in today's standardisation world and naturally the field of audio and video coding / decoding, such as MP3 and MPEG is no exception. Digital rights management is an additional key element in today's digital world.The Digital Media Project (DMP) is a non-profit organization devoted to developing worldwide standards for music, video and other creative works that are digitally recorded and transmitted. Such standards allow the rights of creators to be compensated for their works, allow the public to fully enjoy the benefits of digital recordings, and allow other businesses to provide products and services consistent with these principles and the Digital Media Manifesto.
DMP was founded by Mr. Leonardo Chiariglione, who developed worldwide standards for digital audio and video coding, such as MP3 and MPEG, while chairing the working group of the International Standards Organization ISO/IEC.
In April 2005, DMP produced a...
Patent Call for a New Digital Rights Management System
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Giga Ball Gives Kids Giggles As They Crawl Inside to Roll, Spin, Tumble and Bounce
A new 6-foot giant inflatable ball, the Giga Ball, designed for kids to get inside to roll, spin, tumble and bounce in the playroom or backyard, is hitting stores across America.Giga Balls are available in 51-inch and Mega 6-feet wide (72-inch) sizes, and are built tough and safe, designed to hold up to 150 pounds.The Kidz Kraze Giga Ball was featured nationally on the ABC-TV morning show "Live With Regis And Kelly."
Kelly Ripa demonstrated the Giga Ball on national TV, crawling around inside the ball as Regis Philbin commented about the Giga Ball."The Giga Ball gives what kids want and need: fun, exercise and lots of laughs," says Kidz Kraze President Mark Freedman, the marketing maven who came to fame launching and building the renowned Teenage Mutant Ninja Turtles, and other famous kids entertainment properties.Shaped like a big soccer ball with openings on two sides, with several clear panels for easy viewing by a child, Giga balls were a sell during the 2004 Christmas season...
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THE-WRITE-ONE ATTRACTS THE RIGHT ONE IN ONLINE SEARCHES FOR LOVE
(ContentDesk) December 19 2003--Writer Donna Gould has launched The Write One, a savvy new service designed to help singles improve their chances of finding love online."When U.S. News & World Report features a cover story about Internet dating, it's a sign that online matchmaking has gone mainstream!" says Gould, who writes polished online personal ads for those who want to stand out in the increasingly more crowded world of Internet dating.Once considered a refuge for the socially inept and utterly desperate, advertising online for a romantic partner is fast becoming a way of life for single adults. In the first half of 2003, revenues from online dating services totaled $214.3 million, triple the amount spent in 2001. In the month of August alone, half of all single American adults? 40 million, to be exact ? visited an online dating site. This explosive growth means there are more chances than ever before of finding true love online.
But as Gould discovered, taking the plunge...
THE-WRITE-ONE ATTRACTS THE RIGHT ONE IN ONLINE SEARCHES FOR LOVE
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Pool table perfume External vs. Submersible Pumps. Which one should you Use?
“Pimp My Living Room” Becomes a Reality for Many Americans: Booming Demand For LCD TVs.
(ContentDesk) January 3, 2006 -- 2005 will go down in history as the year of the big screen LCD TV. Large screen LCD TVs have recently come down in price to be very competitive with large (40 +) plasma TVs. People who have been searching for the perfect flat panel TV screen can finally get it at a price they want. One thing is for certain: home entertainment...
lcd tv “Pimp My Living Room” Becomes a Reality for Many Americans: Booming Demand For LCD TVs. Pool table
Pool table > “Pimp My Living Room” Becomes a Reality for Many Americans: Booming Demand For LCD TVs.
Electric Generators
Electric generators are used to supply power to homes, commercial and industrial establishments when there is a disruption of power. It is also used in places where there is no supply of electricity. Electric generators come in a wide variety of models, size, and prices. Choosing the right electric generator depends upon an individual's need. A homeowner first has to identify the appliances to be powered by the generator.
The total wattage required to run these appliances has to be added...
Pool table electric generator
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JULYkit...JOO got it...EAR CANDY FOR July
(ContentDesk) July 14, 2004 -- Twice a month here in NYC, you get to hear a series called "Ear Candy" where Folkies, Rockers, Jazz mongers and everything in between can strut their "unplugged" selves at Ruby Fruit Bar & Grill and it's free! Well, don't mind the killer Martinis and tasty snacks they serve up. Catch NYC-based Indie Soul/Alt. Rocker Nicola in a rare appearance without the band, along with a host of other emerging talented NYC guys and gals "sans band" on Wednesday, July 28th. The...
JULYkit...JOO got it...EAR CANDY FOR July
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