What is a water vacuum?
The only way I was able to vacuum with a cartridge filter was to cut the PVC piping between the filter and the pump and install a tee that would accomodate a backwash hose. On the return line I installed a ball valve to divert the water without going back into the pool. Hope this helps. ANSWER:…: If you have a pool pump and a swimming pool cartridge filter and possibly a heater the plumbing to and from the equipment pad should be connected on the suction side of the pump to the skimmer. On the discharge side of the filter or heater that pipe goes back to the pool. Your pool vac head and hose should connect into the skimmer at some point inside the skimmer to be able to vac the pool. You have to attach the vac head to a telepole, connect your vac hose to the vac head, feed the hose into the water thus filling the hose - until you reach the loose end of the hose. Place the palm of your hand over the loose hose end while it is still under water - trapping the water in the hose- then while hand still on hose end place that end into the skimmer pulling your hand away just before you plug it into the skimmer hole. At this point your should have some sort of suction at the vac head. It may or may not have much suction depending on how the system is plumbed and at what hp the pump is rated. In other words a 1/8th hp will not produce the suction that a 1/2 hp or 3/4 hp will. If this does not work for you and you don't have those tools as described above you then may resort to a vac that will work off your garden hose -- if you have enough water pressure. The more water pressure the better. k (MORE)
What is wrong if your pump won't prime when you go to vacuum and water is not shooting back through the return line to fill the hose before vacuuming?
Answer . I will assume you have an in ground pool and you are not able to prime the pump, which means you an air leak, an blocked impeller or a plugged return line.. There are many variables in this situation. If you have not replaced your strainter lid gasket in the last 2 years start there. Al…so if your strainer basket is cracked or damaged check the impeller to see if it is clogged. If you have a salt generator make sure the cell is clean.. If none of these solve your problem I suggest you hire a swimming pool technicial to check out your system. (MORE)
A "vacuum" is a state of emptiness or a void (Latin vacuus ,from vacare , to empty). Classically, it is used to denote a space absent of matter, or ofair, as in outer space. A "pure vacuum" (or complete vacuum) is a state of containingabsolutely no matter, which only theoretically exists. A vacuu…m cleaner is a cleaner that uses electricity. Vacuums suckup dust from the floor and they put it in a bag where it keeps allof the dust. (MORE)
There's a sealed tank that's about half full of water, half full of air. At the top of the tank there is a hole going to the vacuum moter, and a tube going to the bottom of the water on one end, and to whatever is sucking off of your floor on the other.. The motor pulls the air out of the top, drop…ping the pressure inside the tank. Since water won't expand (much), the pressure is equalized by air from the tube which is full of the stuff from your floor. This dirty air enters at the bottom of the water. As it bubbles up to the top, heavier and larger things like dust and dirt remain trapped in the water, and the air comes out clean.. That's it in a nutshell.. Your vacuum cleaner likely has a series of valves and maybe a one-way respirator (like on some snorkels that only allow water to flow in one direction) to reduce the risk of water damaging the motor. Even though water does an excellent job filtering air, there are probably also some filters at the motor exahaust to catch things the water couldn't trap. Still, none of these are necessary to the basic functioning of a water-based vacuum cleaner.. This exact process is used in some industrial air filtering systems, and just like your home water-based vacuum cleaner, creates a nasty sludge which gets flushed into the sewage system. (MORE)
Answer . Clarification:. I am wanting to know how much vacuum I need to pull to get water to boil at 150 degrees.
vacuum is measured in inches of mercury. sea level is zero. water will boil at 212F. as negative pressure or elevation increases the boiling temp. of water decreases. if you had a pressure reading of 29.7 in" of mercury the water will boil at 192F. if you had a pressure reading of 10 in" of mercury …water will boil at 32F (MORE)
In space both dark matter and dark energy are believed to be in the vacuum. The general answer is nothing-but light rays can pass invisibly through it. .
Why would a Hayward pool pump develop a vacuum and then within ten seconds the vacuum just stops and the water flow drops?
The pool pump is most likely losing the vacuum due to clogged upfilters. The filters need to be checked and cleaned.
Just short of 10 meters.....no matter what. Wells deeper than this MUST have the pump at the bottom of the hole. They don't depend on vacuum to lift the water.
32 feet (384 Inches) of Water (H2O), and 29 Inches of Mercury (Hg) both equate to a perfect vacuum. From that, simple division yields 1" of water being equivalent to about 0.0739" of Mercury.
Sound is a mechanical wave, so it can't travel in vacuum. Sound speed will be higher when the molecules of the material it is traveling are closer to each other, this means that it travels the fastest in solids, medium speed in liquids and slower in gases. In vacuum, the speed of sound is zer…o. Sound doesn't propagate through vacuum. Shout as loud as you want to, and the sound goes nowhere if there's no medium to carry it. Two astronauts standing next to each other on the surface of the moon can communicate only by radio, or by touching their helmets together. (MORE)
It will sound kinda silly, but I use a leaf blower in my car, under the seats, and it will blow out all the crud that the vacuum can't reach! Just open all the doors and you can blow out every corner and crevace even in the trunk and glove box. Use regular vacuum afterwards. I even used it under my …bed once (after opening window and removing screen). (MORE)
Yes. In a vacuum, the only resistance is the friction in the suspension for the bob of the pendulum. Other than that, it should swing a long time. In air, friction with air will add to the friction in the suspension and it won't swing as well as it would in a vacuum. But it will swing for a while. A… pendulum will swing in water, but the hydrodynamic drag will make it stop in a really, really short period of time. Just a couple of swings will strip the pendulum of almost all its energy. And the speed of the pendulum will be slower than in air, and it won't swing anywhere nearly as far through the bottom of its arc as it did in air. (MORE)
You shouldn't loose any unless you are vacuuming to waste. If you are vacuuming to waste it depends on how long you take and the sise of your pump.
This sounds like flocculate, or clarifier, The next time you vacuum the pool gently vacuum the scum at the bottom to waste, Do not put it through the filter. you will lose a bit of water but it should top the problem from recurring if I am right.
\nA vacuum breaker should not leak at all. The purpose of the vacuum breaker is to control the atmospheric pressure inside a geyser. If it is leaking, it means the rubber seal inside has either broken or has perished and needs to be replaced.
No, metal will not rust in vaccum water because the process of rusting requires the presence of oxygen and water.But in this case only water is present and since this water contains no air(nor does it contain oxygen) rusting will not take place. Water in a vacuum will become a gas. Then the vac…uum is not a vacuum unless 0 mmHg is re-obtained. Then, no... no rust because there are no reactants in the latter case. (MORE)
In a vacuum there is no matter. A vacuum is the absence of mass in a given volume of space, so an evacuated space has nothing material in it. There may be electromagnetic energy of some kind or another, however. About the most perfect vacuum we know of is in intergalactic space. In that space, …which is the space between galaxies, there is very little matter. Perhaps only a few atoms (and probably of hydrogen) in a given cubic meter is about all that we think is out there. But light and microwave background radiation will be present. In a partial vacuum, which is all that we are able to create, there would be a number of atoms of stuff there owing to the imperfections of our equipment. A link can be found below for more information. laws of physics (MORE)
No, because the low pressure would mean that the temperature of the water would be too low to cook the egg.
Let us assume that you have a "very long" tube filled with pure water and manage to invert the tube (open-end down) into a "very large" water container, without losing any water in the tube (no air has entered the tube). We shall see how long the tube will be in order to form a "vacuum." At this …point (at sea level), the water inside the tube exerts a downward pressure on the water outside the tube. The water level will settle, in time, so that the downward pressure exerted by the tube water is equal to the atmospheric pressure at the water level outside the tube. If the pressure is not equal, then the water level has not settled yet. Water pressure exerted = height of the water column [m] * density [kg/m^3] * g [m/s^2] = h [m] * 1000 [kg / m^3] * 9.8 [m/s^2] ~ 10,000 [kg / m^2 / s^2] *h [m] = 10000 * h [N/m^2] Atmospheric pressure at sea level (say at 20C) ~ 100 [kPa] = 100,000 [N/m^2] Hence, 10000 * h ~ 100000, or h ~ 10 [m]. At room temperature and sea level, the "vacuum" can support ~ 10 meter of water. The aforementioned tube has to be at least that tall in order for a "vacuum" to form. P.S. You need to use more precise values in the calculation. The "vacuum" is not really a void -- it is saturated with water vapor. (MORE)
it will suck the water up, depends what type of vacuum, and it could electricuit u !!! (that gd enough)
In a vacuum, there is no atmospheric pressure to keep the water in the liquid state.
\nCartridge is not installed correctly or you have a crack in the manifold allowing dirty water to pass by the filter.
The boiling point of water is a characteristic property; it doesn't change. Thus, the water's boling point is 100 degrees Celsius.
Probably, but I wouldn't recommend it! Aquarium vacuums work much better, and are often called 'gravel washers' or 'siphons'. They are available online at www.bigalsonline.com under the maintenance section.
You can vacuum a salt water pool the same way you would a non salt water pool. If you are vacuuming on the filter setting, your filter will help to clean the debris out of the pool. If you are dealing with a very dirty pool and use the waste setting, you will be wasting some of the water from the po…ol in the process. Depending on how much water you take out and need to refill, you will most likely need to add some salt back in to get your salt level back to normal operating levels. (MORE)
Depending on what you mean: . If water is exposed to a vacuum (no air, not a cleaning mechanism) the water tries to evaporate. or turn to vapor. This sucks heat from the liquid and it cools off. ....any liquid has a specific boiling point. Dont confuse boiling with adding heat OK? So typically …water at normal pressure boils at 212F. Well when we subject that water to a vacuum and lower the pressure, then it boils at a lower pressure and temperature. You can interchange the terms evaporate and boil here. Now the cooling part. In a lower pressure and during evaporation we see a change of stae from liquid to vapor; that is the important part as a very large quantity of energy is consumed during change of state. That energy comes from the surrounding water. . If water is placed in a vacuum flask (a Thermos bottle) it stays cold (or hot) since heat cannot cross the vacuum in the walls of the bottle. . If water is sucked into a vacuum cleaner the metal wand and hose will get cold as the air passin over the wet walls of the hos evaporates the water. The heat to do this is preferentially sucked from the walls of the machine. (MORE)
In a vacuum, sound doesn't exist at all, because it needs some sort of medium through which to travel. (Light, however, can travel in a vacuum.) In air, at 20 Â°C (68 Â°F), sound travels at 343 meters per second. The speed increases with temperature and varies if different gasses are used. … Sound travels much faster in liquids than in air (or any gas). In water, it is about 4.3 times faster than air at 20 Â°C. In solids, the speed of sound depends greatly on the type of solid, though is generally faster than in air. In lead, for example, it travels at 1960 m/s, but goes 5640 m/s through glass. (MORE)
Yes This is because boiling is caused by the liquid water turning to gas which is not influenced directly by other materials. However, once in a vacuum the pressure is so low that the water will boil at much lower temperatures.
Why does dirty water comeback into the pool while you are vacuum the pool you have to vacuum to waste?
The particles are too fine for the sand to trap, sand filters trap particles down to 25 microns. Dead algae can be a lot finer than that. The only filter that can trap real fine particles down to 3 microns are d.e. filters.
What type of filter do you have? If you have a DE filter then you may have cracks in the manifold that the tubes slot into or the filter tubes are falling out of the manifold. Either way you will most probably need to buy a new manifold.
Indeed it does. If you subjected a wet substance to a vacuum pump, the water would evaporate, and as the hotter molecules escape first. The substance gets colder and colder as the vacuum pressure decreases, eventually becoming an ice form from which it continues to sublimate.
Its because there are contact points between the inner part of the flask and the outer part, which allows some thermal conductivity to occur.
Simply to make the numbers more convenient. Each inch of water is the same as about 13.5 inches of mercury.
i believe the question should be stated as "How high can a pump pull liquid when mounted above the liquid source". an old pump adage is that a pump doesn't suck. sounds dumb, but it refers to the necessity of having a positive pressure at the suction of the pump greater than the required net positiv…e pressure req'd by the pump. NPSHa must be greater than NPSHr. in any system open to atmosphere the surface of the fluid will have 14.7psi (at sea level) X 2.31 ft/psi, or roughly 34' of head, or NPSHa, available. the manufacturers performance curves will show the NPSHr of the pump at any given flow for a given impeller trim. by subtracting this NPSHr from the calculated surface pressure you can arrive at a general maximum lift that the pump can run at. there will also be line friction losses that will reduce this height, and typically we subtract another 2-3' for a fudge factor as you would not want to run on the ragged edge. so, a pump with an NPSHr of 8' would be able to lift cold water approx 22' before cavitating. getting it primed is another issue, and having said all this, there is a type of centrifugal that can successfully trick this seemingly rigid restriction on lift. the typical home commercial jet pump can lift from many times this limited depth by taking a portion of the high pressure discharge and sending it down a separate pipe and into the suction pipe. this effectively increases the suction pressure and allows this type of pump to lift from quite a depth. a really neat way around having to install a down-hole pump submersible. of course the type of pump, what you are pumping, temperature, vapor pressure, specific gravity, and viscosity will all affect the height that a pump can lift a fluid. If the question is ' at what height we can place the suction side of pump from the water level from where it is pulled up', then if we are not considering the NPSH (which is not practical of course) , then i think that the maximum height of the suction side will be the height which will balance the pressure which is on the water level below from where it is pumped. If the pressure there is atmospheric pressure (at the water level below suction side)then maximum height of water rising is 10.3 m around(will vary according to the fluid being pumped). Above it water will not rise whatever vacuum you create though pump.(Its just like in barometer where mercury doesn't rise above 760mm, although there is vacuum above it in the tube. This is because at base of inverted tube of barometer, pressure is balanced). In practical of course the height is much less of course otherwise cavitation will take place when pressure falls below Vapor pressure of the Liquid being pumped. (MORE)
It is called a Vacuum Relief Valve. It should be located on the cold water inlet no more that five inches above the top of the tank, if installed properly.
Nothing; the vacuum renders it weightless however the mass stays proportionate to the volume, in this case 1 gallon.
YES Machines designed to work with water have valves to prevent damage to the motor. --------------------------------------------------------------------------------------------------- In short, Yes. A standard upright vacuum cleaner you'd find in most homes can not tolerate moisture. Shop… Vacs on the other hand can suck up water but again the motor can NOT get wet. Shop Vacs employ a pretty simple device to ensure the motor never sucks water up. On the suction end of the vacuum there is a cage that is fully surrounding a float. The float is too heavy to be sucked up when there is nothing pushing it up. but as the water rises in the tank the float gets higher and higher to the suction port until it gets close enough for the port to grab it, effectively stopping the vacuum from sucking anything else. Same as covering the hose with your hand you will hear the motor pick up speed as there is no wind resistance on the fan anymore. Just dump the water out and keep right on a sucking. (MORE)
The heated water pumped through the pipes gets cooled once the exit valve /mixer valve is opened. This results in reduced pressure in the system. So there is chance that air gets sucked into the tubes from atmosphere that causes fluctuating water shower ; or the tubes and reservoir can collapse unde…r suction pressure. To avoid this a by pass connection for water is given through a vacuum valve. This valve is set for a calculated pressure in the system. Whenever pressure falls below this value it opens and allows extra water to enter into the system and thus maintaining the pressure in the system. (MORE)
I had this problem as well and it was a cracked gasket in between the pump and the pool. When I wasn't vacuuming the basket was gravity fed by the skimmer but when vacuuming it was suction fed and air enterd the hose. Check your fittings and connections. Hope this helps. Derek
In a vacuum, water has no liquid phase. At any temperature high enough to melt ice, the water will then boil.
Roughly 16 inches before the surface starts to boil from the vacuum, this is also assuming 33 degree water, the higher the water temp the less lift will be achieved due to water's vapor pressure.
The purpose of the vacuum in the fresh water generator it can make a 50 degrees Celsius boil the water that's why they create a
When light with wavelength of 589 nanometers moves through water at the temperature of 20Â° C, its speed is 75% of the speed of light in vacuum.
If you have the regular set up that includes a skimmer, pump and filter then you don't have to waste any water. Get an lid-to-hose adapter, that fits over the skimmer basket at your pool supply store. Fill the hose with water and attach it to the lid. Place the lid inside the skimmer over the skimme…r basket, then vacuum to your hearts content. Pool Masters (MORE)
Year, make and engine would help, some diesels had water pump / vacuum pump combo's but in short, any standard non-eccentric, run of the mill grocery getter vehicle in your local shopping center parking lot - no... But year, engine and make would help!
there is a tear in the diaphragm causing moisture and carbon from the exhaust. order a new one.
A Vacuum cannot transmit sound. A vacuum is by definition, void of any matter. Since sound is transmitted by passing vibrations in matter, without matter it can't carry any sound.
A common way for water to get into a vacuum cleaner is for it to besucked up off the floor. We also see that some machines withwashable filters have those filters put back in wet. The filtersare supposed to be completely dry before reinstalling them. Manyvacuums can be damaged by water.
No. Light slows down whenever it passes through water. Nothing isfaster than the speed of light in a vaccum.