Archive for June, 2009.
Jun 30
Choosing the between all the various salt water fish tank filtration systems can be confusing to say the least. But, before you choose your specific system, there are a few points you must know no matter which system you choose. Keep in mind filtration is a very important part of your tank, so don’t rush through this step.
In natural habitats, the fish have an ample areas in which to live. In your tank, they are confined to a relatively small quantity of water. In your tank, waste products can quickly build up and spell disaster. That’s where the filter comes in.
Four factors have a huge impact on the success of your tank, and your filtration system. You must have an adequate biological base, the appropriate choice of animals, not over-populate, and don’t over feed. Get one of these factors wrong, and you most likely will have problems with your saltwater tank.
Biological filtration is the most important sector of salt water fish tank filter systems. The biological filters are living organisms within your tank. They consume oxygen and waste material within your tank. It’s not something you can add. They will occur naturally within your saltwater fish tank.
Mechanical Filtration
The second type of filtration for your tank is mechanical filtration. This is where you choose the type of salt water filter system you will use in your new tank.
Mechanical filtration strains the solid particles from your tank water. It will not remove solids trapped by gravel, or other items within your tank. A good mechanical filter traps enough solids to keep your water clear, without becoming clogged frequently.
Smaller openings catch finer particles and are clogged
faster than a larger opening. Keep this in mind as you choose your mechanical filtration system.
Types of Mechanical Filters
For years, the corner filter has been the least expensive and most used type of salt water fish tank filtration systems. These clear plastic boxes sit inside the tank. An air stone bubbles air through an airlift tube, which forces water through a bed of filter floss mechanically filtering the water.
Today there are better methods,that don’t take up space, look nicer, and perform well.
Power filters are used by many. You’ll find many styles of power filters. The most common hangs on the back of the tank. A siphon tube pulls water from the tank into the filter box and passes the water though a mechanical filter. An internal pump returns the filtered water into the aquarium. Power filters come in many sizes suited for small to large aquariums
Under-gravel filters work by slowly passing water through the gravel on the bottom, which sits on top of a perforated plate. The water pumped with an airlift, with bubbles air lifting the water in a vertical tube attached to the filter plate. One problem is that the gravel clogs up with waste creating a health risk for your fish.
Sponge filters are an efficient,cheap form of biological filtration. Water is forced through porous foam by air bubbling through an airlift tube. Water flowing though the sponge allows the growth of a colony of beneficial bacteria that neutralizes toxic ammonia.
Chemical Filtration
Chemical filtration removes dissolved wastes from aquarium water. The most popular chemical filtration is the carbon filter method. Your water is filtered through gas activated carbon. The best GAC for filtering water is made from coal and is
macro-porous (larger pores).
Cris Stanford
http://www.articlesbase.com/pets-articles/salt-water-fish-tank-filter-systems-50342.html
Jun 30
Much of the nation lives in cities, or close enough to them to have all of the amenities; Cable television, conveniently located post office, and, of course, water. The ability to get water at the touch of a lever is one of our most under appreciated gifts, as anyone who has camped or done military service can attest. For those who live far enough outside the city to need an alternate source of water, the traditional well is hard to beat. A good pump can produce as much pressure as anyone could want, and pumps are about as reliable as any hardware made by man. Certainly, I’ve had much better service from my old well than my car.
Submersible pumps are available in 115V and 230V versions, though the 115V is usually only for the smallest, half horsepower size. Please note that electricity and water are a dangerous combination, and a licensed professional should do the wiring.
Submersible pumps came in a range of sizes, with ½ horsepower on up to 25 horsepower models on the market. For almost all purposes ½ to 2 horsepower will suffice, but as the water table gets lower, more power is required to move the water to the user.
A typical range of prices would be in the $600-$1200 range for the most common sizes of pump. However, the pump is generally not the expensive part, as digging the well is the major cost of the system.
In addition to the power and electrical requirements, another important consideration is the warranty. A company with a reputation for quality and good service is probably worth a bit more money, since doing it right once is always better than doing it twice. It is also worth keeping the manual handy, since many of the possible issues are quickly fixed with the correct knowledge.
In some locations a filtration system might be needed, either to keep sand out of the vulnerable impellers or to deal with hard water and contaminants that are unpleasant, though not dangerous. Water that is safe to drink but smells like eggs is worth a little extra expense to correct.
Joshua Wills
http://www.articlesbase.com/home-improvement-articles/all-about-submersible-pumps-119969.html
Jun 30
You can get a blood pressure reading with various blood pressure monitors. These include a wrist monitor, an ambulatory blood pressure monitor, or the good old fashioned kind complete with inflatable ball and mercury bubble. No matter which monitor you use, however, a normal blood pressure reading will always fall within a certain range.
To understand what makes up a normal blood pressure reading, it’s important to know what blood pressure is. The heart pumps blood through the four heart chambers and into major arteries that transport blood throughout the body via the circulatory system.
Each time the heart muscle contracts, it creates pressure known as systolic blood pressure. This pressure is measured to produce the first numbers got through a blood pressure reading. When the heart muscle relaxes, between beats, is the moment that systolic blood pressure can be measured.
Blood Pressure Range
For most healthy people, blood pressure falls within a certain range. Those who suffer from stress, high cholesterol or obesity often have increased heart rates that are known as high blood pressure.
On the other end of the range, some people also suffer from low blood pressure, but this is almost always because of illness or blood loss. Extremely low blood pressure can cause shock and in the end, death.
A normal blood pressure reading almost always falls within the 120 to 130 beats per minute range. If someone is in excellent physical condition, the heart rate will beat at 120 or less beats per minute, systolic pressure. The diastolic pressure in a normal blood pressure reading will be between 80 -90 beats per minute.
You may see a normal blood pressure reading written as 124/84, for example. An even better normal blood pressure reading is anything under 120 and less than 80, like 118/78, for example. This reading points to the normal blood pressure reading of a normal, active adult.
Some adults have blood pressure readings that are a little higher than normal for the general population, but not for them. A high, though still normal blood pressure reading, may measure from 130-139 for systolic pressure to 85-89 for diastolic.
Blood Pressure in Children
Children will display different blood pressure readings. A normal blood pressure reading for young children, those between 3 and 5 for example, are around 116/76. A young teenager may show a normal blood pressure reading of around 136/86.
Children between these ages can show a normal blood pressure reading of between 122 and 136 for systolic pressure and 78-90 diastolic pressures. Something to remember is that children have normal blood pressures in ranges that are lower than adults.
But even so, a child is at as much risk of developing high blood pressure as an adult if lacking proper diet and exercise. High risk children also include those suffering from medical conditions or those taking medications that may raise blood pressure.
Remember that no one’s blood pressure is always the same. Sometimes, readings showing a high blood pressure may result from stress, illness or even anger. Knowing what a normal blood pressure reading is will help you see blood pressure readings that are not so normal.
Stan Kitchen
http://www.articlesbase.com/health-articles/what-is-a-normal-blood-pressure-reading-108356.html
Jun 27
that will pump 60,000 GPM or more.
YES!!
60,000 GPM
speed 30 MPH
Do you realise how much water you're talking about here? Please check your figures and confirm you mean 60,0000 Gallons Per Minute. Thats 270,000 litres per minute or 16,200M3 per hour.
Enough water for a town or small city.
The power requirements will be horrendous, probably in the 250kW range without doing calcs for head etc. and you will be operating at medium voltage, 3.3kV or 6.6kV.
If you're sure of your figures see the links below
Jun 27
we have tried 3 pumps and they are reading 30 psi. and we bought a new Bladder tank and we are still not getting any water to the house. I do think the last bladder tank was bad we found it did not all drain so figured it ruptured. but with new tank and pump we have no water any ideas?
30 PSI sounds kinda low, is your tank lower than the house, if so depending on how much lower, you can have pressure loss due to the rise from the tank to the house, depending on the type of pipe you are using, the length, how many turns in the pipe you could also have some friction loss. Does the pump come on. do you have a gate valve, if so maybe the gate never opened back up when it was turned off, which would not let any water by. Is the pressue switch working properly. Is the pump coming on, if so is it pumping water in the tank. There are a number of things that could be going wrong, you may need to call a plumber.
Jun 27
I would like to have an increased pressure from the hot water @ the shower end, but I do not want to use any electric showers or any other electrically operated pumps. Is this possible, if Yes How?
A water-saving shower head will make it FEEL like the pressure has increased, because you’re forcing the water through a smaller opening—this will also save the environment, and your money (less water and water heating bills).
IF your problem is actually that you get a sudden drop in pressure when someone flushes the toilet, that can be solved with a pressure-balancing faucet like the Moen Moentrol or Positemp.
It is probably unlikely that your house PSI is low (it is more likely to be too high). Hoffmeyer is right about measuring the pressure & adjusting it, though I would suggest 50PSI. Note in the article below that some homes have two separate feeds - one for inside the house and one for outside the house. The outside one can have much higher pressure.
Copper pipe can easily handle over 100PSI—but your house taps and other fixtures are likely designed for 50PSI.
You can get a hose adapter for faucets that lets you use the hose pressure gauge to measure the pressure at any faucet in the house.
The pressure at the tap in the bathroom should be identical to the shower.
Jun 27
We have one well pump…?
Hi to Tech. guys. We have one well pump installed newly to pump out
sea water near shore. it's real capacity is 100 Cu. M / Hour and 80 M head. Right now we put the pump in 12 inch casing, in depth of 36 M.
I am getting 112 Cu. M per hour. The problem is , This well is not enough to give this much water continously. I want to regulate by closing the discharge valve but the Current of motor is increasing.
i need only 100 Cu. M. When I reduce flow, why this current is increasing? I could not understand it. This pump is originally 30 Kw or we say 40 Hp pump. Initially the current is around 56 A with 415 Volt , 3 ph but after closing the valve to 15%(85% valve open) the current is 60 A. Please any one can explain it? V. Kannan
When you produce back pressure or a head against the pump it works harder due to restriction. You would need to install a variable speed reostat to adjust flow . Is your prime mover electric or diesel? If you install reostat you can adjust flow with discharge valve wide open.
Jun 27
I am based in Thailand and therefore availability of pump types may affect this: I am building a fish pond next to the house and am thinking of using a nearby small stream to recycle the water 24/7 to remove 'waste' rather than put in a filtration system; the water in the stream is PH7. The stream is about 25 metres away and the head from stream to waterfall discharge point about 5 metres. My understanding is that an external pump pushing the water would be best with the overflow return by gravity. Research on the net suggests that a 'solar' pump would be a costly option, taking years to recover the cost, and might struggle to do the job 24/7 anyway. Any suggestions on pump type and capacity would be appreciated, balancing initial outlay with running costs and longevity at 24/7.
Sorry - forgot to say that the capacity of the pond is about 2300 US gallons.
Need to know the size of the pond: OK 2300 gallons
Need the amount of water you wish to remove from the pond to achieve the desired cleaness: EX: How many fish, how clean
Need to know what the capacity of the small stream is to provide water. EX: 1 foot wide stream 1 foot deep or 10 foot wide stream 5 feet deep
Reply and I shall help.
Jun 24
Simple Pump™ is a hand water pump that works as a reliable backup right beside your existing submersible well pump. As a hand water pump, Simple Pump™ delivers up to 5 gallons per minute, and water comes out of your household spigot at normal pressure. With such strong water flow, use Simple Pump™ as a primary water pump system for non-electrical wells too.
Produce Up to 2200 gallons/day
When you need a water pump for larger jobs, just convert your Simple Pump™ manual water pump into a motorized water pump. Our 1/5 HP gearmotor attachment quickly bolts on to operate reliably in any climate. Then you’ll be able to pump up to 2200 gallons/day! As a motorized water pump, Simple Pump™ is tough enough to safely move contaminated water, highly impacted ground water, and water with other debris.
Simple Pump™ - Works Hard for Less Than $1 a Year!
Simple Pump™ has an exceptionally long use-life because this lever arm water pump is constructed from durable materials that resist wear and tear. In fact, your maintenance cost averages only $1 a year - that’s less than the cost of a cup of coffee!
To learn more about Simple Pump™, visit www.simplepump.com and reference promo code: TBC08
Duration : 0:0:48
Read the rest of this entry »
Technorati Tags: Biden, Energy, Gallons, Gear, Hand, McCain, Obama, Palin, Power, pressure, pump, Simple, Spigot, Submersible, water
Jun 24
Learn how to reinstall the fuel tank after the fuel pump has been repaired on a car with expert automotive tips in this free online auto repair and car maintenance video clip.
Expert: Howard Fleischmann
Bio: Howard Fleischmann is a majority partner and active manager of Community Tire & Auto Service Specialists, which has seven locations throughout Arizona.
Filmmaker: Bill Zervakos
Duration : 0:1:7
Read the rest of this entry »
Technorati Tags: automotive, carburetors, fuel, injection, repair, systems
