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Water is pushed into sand as it passes through the sand dirt is trapped between the granuals of sand at the top of the filter. at the bottom of the filter in the sand there are spokes with holes in them big enough to let water through but not big enough to let sand through (unless they are worn) known as laterals. these allow the water to return to the pool. As the dirt at the top of the sand builds up the the pressure of the water being pumped to the filter builds up slowing down the turnover of water being filtered. When the pressure becomes too high the laterals at the bottom of the filter are shut of and the water at the top of the filter is allowed to run directly to waste as it does this it takes along dirt that has accumulated. when the water runs clear again( there is usually a little indicator that sows the water running through it at the top of the sand filter while it is backwashing)You set the filter back to rinse for about 30 seconds then back to filter filter from back wash.
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∙ 16y ago
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∙ 15y ago# FilterRuns the pools water from your pump through the filter media then back into the pool. this is the setting that is nearly always used. The filter media is such that it stops fine particles from getting through to the other side.
* Backwash Runs pool water from your pump over the filter media that has been contaminated with dirt picks it up takes it out to waste. This removes dirt that has been collected during filtration. A backwash is required when your pressure rises about 10 pounds over the normal pressure. Most sand filters have a clear bubble situated near the multi port where you can see the water running to waste, watch it and you will see that the water is dirty at first run the backwash until it clears then stop the pump. * RinseRuns pool water from pool through the filter to waste further rinsing the top of the filter media. this should always be done after backwashing to stop cloudy water returning back into the pool * Re-circulate Simply keeps the water circulating from the pool through the pump and back into the pool. It does not put the water through the filter, stops the water from stagnating but still puts it through the static skimmer. * Winter/Closedshuts all the ports and is used when the pool is winterized shut down or to stop water from passing through the valve. * Waste Runs Pool water directly to waste without running it through the filter. This setting if manually vacuuming the pool and the dirt load is too high for the filter to handle. It is also the setting that is used for hand vacuuming when removing settled contaminant and flocculate after flocculating the pool. Never keep the pump running when changing the setting on the multi port as it will cause it to be damaged.
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∙ 13y agoMeshes and sand sieves are used to separate insoluble (non-dissolvable) particles from contaminated water (eg. lake, sea water) in preparation for further treatment.
An answer by a 13 year old girl :)
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∙ 12y agoThe water is sprayed on top of the sand by a spreader. The water then filters through the sand and passes through multiple screened latterals in the bottom and passes up the main hub pipe to the discharge of the valve.
Wiki User
∙ 15y agodrain the sand out by putting it on a flat surface or in a boul and pour out the water drain the sand out by putting it on a flat surface or in a boul and pour out the water
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How can you separate a mixture of sand from water?
You can separate sand from water by using the process of filtration. Pour the mixture through filter paper or a sieve, which will allow the water to pass through while trapping the sand particles. The water collected will be free of sand.
What do fine sand and gravel do to water?
The gravel and sand filter out smaller particles from the water
How do you separate sand from water?
You just need to use filter paper. use the filter paper than just pour the water and sand on the filter paper. the sand will go to the filter paper while the water will go straight to the beaker or anything below it. That is how you separate it. To separate sand and water you could pour the mixture through a filter. The water would pass through the filter but the sand would remain on top of the filter. If you didn't need to save the water you could evaporate the water and leave the dry sand behind. Or allow the sand to settle and carefully pour off the water first. Then allow the remaining water to evaporate.
Does condensation separate sand from water?
No. Condensation is the process in which a gas turns into a liquid. You can filter the sand from the water using a funnel and filter paper, and then let the water evaporate from the wet sand you get from the filtration.
Does salt water or fresh water filter sand gravel soil and pebbles better and why?
Water does not filter particles: it is the other way around. Pebbles, gravel, and sand are used to filter water, with the smallest particle size (sand) filtering the most particulates from the water, whether it is salt water or fresh water.
What is a separation technique for sand and water?
One common separation technique for sand and water is filtration. The mixture is passed through a filter that retains the sand particles while allowing the water to pass through. This way, the sand is separated from the water.
How do you separate salt and sand from water?
You can separate salt and sand from water by performing a simple filtration. First, pour the salt and sand mixture through a filter paper to trap the solid particles. Then, evaporate the water from the filtrate to recover the dissolved salt, leaving the sand behind.
Sand and water separation?
To separate sand and water, you can use the process of filtration. Pour the sand and water mixture through a filter paper or sieve. The sand particles will be left behind on the filter while the water passes through.
Does a hayward sand filter require a liner at the bottom of it before adding water and sand?
My Hayward sand filter doesn't have a liner. I just add the sand to the pressure vessel.
Why do you use filter paper to separate sand from water and not salt from water?
Because the salt dissolves in the water whereas sand does not.
How do you get the water out of a pool sand filter without losing the sand?
There should be a drain plug near the bottom of the filter. Open it and let drain. The sand will stay in.
Do you still need a sand filter with a salt water system?
Yes, a sand filter is still needed with a saltwater system to help filter out debris and particles from the pool water. The saltwater system is responsible for chlorinating the pool water, while the sand filter helps to remove contaminants and keep the water clean and clear.
