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Does ground water freeze in winter?
yes groundwater freezes in winter.
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Is draining all but a foot or so of water out of an above ground pool through winter a bad idea even when you live in the South and don't have to worry much about freezing?
Doesn't some amount of water help hold the pools shape so it doesn't colapse? I had an upbove ground pool that we left a little water in for the winter so it woul…dn't fall down w/the winter storms. They sure are not fun to clean in the spring though. Answer It depends on the ground water level. If your ground water is high enough to float the pool, it's a bad idea. If ground water is high the pool needs the weight of the water to keep it from being damaged. If ground water is low, it doesn't really matter.
Answer why don't lakes freeze? The H2O molecule is a dipole (it looks kinda like this: o: the "o: is the oxygen atom, and ":" is the two hydrogens) Sinc…e the hydrogens sort of cluster on one side, and oxygen is more electronegative than hydrogen, the left-hand side of this diagram would have a partial negative charge, and the side with the hydrogens would be slightly positive. The slightly positive end of one water molecule will "bond" with the slightly negative end of another water molecule. Like magnets. This occurs to some extent naturally, becasue it takes less energy to just let two magnets stick together than it does to hold them a centimetre apart, right? So when the temperature outside drops, more hydrogen bonds are formed, which conserves the energy of the molecules, allowing them to remain in liquid phase. (this is, in fact, the same reason water crystallizes in such a wierd way when it's freezing, making it LESS dense as a solid.) Likewise, it takes water longer than most other things of comparable molecular mass because, as heat is added, hydrogen bonds break and molecules take on energy instead of buzzing around and evaporating.
It can, but usually doesn't for two reasons : it is not exposed directly to the air, and there is generally water being added which must also be cooled to freeze. Water in mot…ion can more easily distribute heat energy, so a large amount of the water would have to be continuously cooled to turn it all to ice.
Regardless of how your hands react to frost bite here is the procedure to winterising your pool You will need Acid/Alkali Shock Chlorine gran…ules Long Life Winterise Liquid Chlorine Make sure the pool is clean The pH should be brought to 7.4 to 7.6 use Acid or Alkali as needed Super chlorinate the water to 10ppm. Add a long life Algaecide. Follow the directions on the bottle re dosing. Run the pump for about 8 hours to mix the water and chemicals thoroughly Check the pool, once in a while during winter and ensure the pH is between 7.4 and 7.6 . The chlorine level is above 5 parts per million. If you need to add chlorine distribute it as evenly as possible throughout the pool and stir it up, concentration of chlorine can cause liner bleaching. As the temp starts to increase after the new year keep a particular eye open for algal blooms Thoroughly clean or backwash the filter; Lower the water level to below the skimmer weir; unless the pool is in a high water table areas, where a partially empty pool could start to float in ground water. In that case seek advice from a local pool expert. Remove skimmer weir and basket and store out of the weather. Partially fill a plastic bottle with anti freeze mixture or small stones or sand and place in skimmer barrel to prevent ice damaging the skimmer. Add winterising chemicals and allow circulation the filter, pump and heater must be drained for the winter and there most be no exposed holding water. Spray the electric motor and any electrical equipment with a moisture repellent spray or even better remove the pump and store it in warm dry conditions. Switch off electrical equipment. If a heat pump is fitted flush it with clean water. If an auto chemical feeder is fitted, remove the chemicals and flush it also with clean water and drain it. Under particularly harsh conditions where the water may freeze: tie a row of half filled plastic containers partially filled with anti-freeze solution or sand along the centre of the pool. This forms a break in the ice and relieves pressure the sides. don't break formed ice as sharp edges may damage the pool lining.
because water freezes at 0oC....so when the temperature is lower than that the water freezes.
No,because of how fast the water is going they never freeze.
When a lake starts to freeze at the top in winter at night How is the water losing heat energy assuming that the air and ground surrounding the water are at the same temperature as the water?
Well, how does your body lose heat? You sweat, your sweat evaporates, and you get cooler. Your question ignores the humidity of the air over this lake. Try this, if you like: …Fill a pot with water and heat it to 65 degrees centigrade; heat your oven to exactly the same temperature; put the heated pot of water in the oven for one hour. When you remove the pot from the oven, will you have the same amount of water? No. What went wrong? You had the same oven temperature (air and ground) as the water, right? It doesn't matter if the air is dry.I like this question because it brings up a better one for me and possibly for others: Why don't lakes and ponds freeze solid in winter? We know this doesn't usually happen because people go ice-fishing. But how is that possible in arctic conditions? The answer is that water attains its maximum density at about 4 degrees celsius. Colder than that, at around 0 degrees, it changes phase, to lower density lce, and rises to the surface, where it protects the lake from further cooling by basically capping it. Water is vastly underrated in its complex relation to life.
yes depending on the temperature it might freeze completely
That would be ice.
due to the anomalous expansion of water
the whole water doesn't freeze (if it's not one of the poles) and fish can survive under that ice in the water because they are immune to really low temperatures.
Yes it is.Always drain the water in winter or look for a new pool to buy because the damages will be of high standards.
They swim about slowly in a circle (sometimes with other aquatic birds) as a group which prevents (up to certain temperatures) the water around them from freezing. ----------…-- The blood flows throughout the body and helps maintain a steady temperature. So the ducks don't freeze to death or shrivel up and die.
In the area surrounding the ice gym it does. In the other areas it does not.
Then water drops and freezes when hitting the ground mean two things. It could mean one it is freezing rain two is it is snowing.