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Pool Care and Cleaning

Why Backwash a pool?


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Answered 2014-08-22 12:35:02

Backwashing a swimming pool cleans out the sand filter. It reverses the flow to push all the trappings from the filter out.

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Backwash first then shock. If you shock and then backwash you will be throwing away the shock you just put.



no... you should call a professional to come inspect your pool


Average pool filter: Backwash 5 minutes and rinse for 1 minute.


Technically, you don't backwash the pool, you backwash the filter. This is assuming you have a sand or DE filter. The filter valve should have a backwash setting. Turn off the pump, set the filter to backwash, and turn on the pump unitl the water runs reasonably clear.


Setting the filter to backwash cleans the filter, running your pump to filter cleans the water in the pool. Brushing the walls of your pool cleans the walls of your pool... and so on.



No you only backwash your pool when your filter pressure on your filter is high 30psi and above on most pools. If you backwash your pool be sure to add two scoops of de to your skimmer. If the presure is still high the u need to clean the filter


That can change from pool to pool, In most cases if the pressure indicator is up to about 3./4 of the way it is time to backwash. this coincides with weak suction.


If the pool is really dirty then it is best to set the filter to waste.


You add D.E. to a pool when you do a fresh filter clean. You also add D.E. if you have to backwash your pool more than normal. When you backwash the pool it is also dumping the D.E. out so it needs to be replaced to keep the grids covered so the pool can filter properly. Hope it helped


Drain/Backwash the pool, clean the inside, and add fresh water.


Its recommended to backwash the de when the pressure goes over 7 psi from the last time u did a backwash


There is no point back-washing the pool if the filter is not dirty as this will only waste water and if you have a saltwater pool salt.


Potatos dont fly when creepers go into the pool. Hope this helps


Depending on the size of the pool and the size of the filter and the amount of times you have to backwash, also if you have had a lot of rain then you may need to backwash more than usual. If you put the pool in and the filter and you know how old the sand is, if you are backwashing more than usual,change the sand. Also before you backwash check the pressure of the water going back into the pool, then backwash check the pressure again the pressure should for any size hayward pump push your hand away if it does not then change your sand.


Backwash your filter and add unsalted water.


You will need to backwash the pump, and then rinse out the filter.


No, but make sure you backwash the filter.


When the pressure on the filter pump is above 20 psi.


Back-washing cleans your pool filter (sand or earth) and extends the usability of the sand or earth.


You can set up a siphon hose if your pool is on a hill, otherwise, buy a pump. Hatawa


You back wash a pool filter not a pool pump. Read your manual. Call the pool store with the brand of filter and back wash valve that you have and they will advise.


There wont be any dirt under the sand. When you vacuum your pool you should do it on filter mode Otherwise you will lose a lot of water for nothing, this would be especially wasteful in the case of a salt water pool. Ofter having vacuumed the pool on filter mode and if the pressure gets too high backwash. after backwash rinse for a minute, then return to filter.


No , if you have a D.E. filter instead of an older cartridge filter than the D.E. can get pretty messy if when you filter clean , and if you have a backwash when you backwash .



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