Assuming that this is an inground/plaster pool.....
Before you even try to vac the pool you have to keep the chlorine level at 10.0 ppm until you can see the or nearly see the bottom. Remove the balance of debris, backwash the filter if D E or sand. Cart. filt. have to be cleaned manually. Run the clean filt 24/7. Empty the pump and skimmer baskets if needed. Re check chem and boost to 10.0 ppm adjust pH. Back wash again as pressure starts to build - maybe 5 #'s above clean press. Continue this process until water looks fairly good and you can see the main drain grate without difficulty. Then you can begin to vac the pool once you can see what you are actually vacuuming. After vac. the pool backwash or clean the filter. It may be a good idea at this pint in time once the pool looks clean to then dismantle the D E filter and clean the grids. You did remember to add fresh D E after backwash didn't you? Your filter will look like trash when you open it especially if the annual filter cleaning has never been done. Jeez, good luck. Would not want your job.
They are kept tightly closed so there is less chance of contamination and if the bottle gets knocked over, its contents will not spill.
Some chemicals react with the air, or are volatile and would escape. Others might be dangerous if the bottle falls over and the chemical spills out.
If it is a closed system, the total energy remains equal.
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Closed
cervix
closed
no, a closed system is means if whats inside it remains as it is same as a closed surface, magnetic flux stays in place.
Closed- AmandaLG
After an ovariohysterectomy (spay), the abdominal sutures should remain in place a minimum of 14 days (two weeks). This allows the underlying tissues to heal so that when the sutures are removed, the abdominal wall remains closed.
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An estate is closed after all the provisions in the Will have been executed. It remains a public document forever to show how the property was distributed and how title to property was transferred.An estate is closed after all the provisions in the Will have been executed. It remains a public document forever to show how the property was distributed and how title to property was transferred.An estate is closed after all the provisions in the Will have been executed. It remains a public document forever to show how the property was distributed and how title to property was transferred.An estate is closed after all the provisions in the Will have been executed. It remains a public document forever to show how the property was distributed and how title to property was transferred.