How do you filter sand from water?

Answer 1

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.

Answer 2

# 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.

Answer 3

Meshes 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 :)

Answer 4

The 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.

Answer 5

drain 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