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Empty it.
Yes, if you close it properly by cleaning and shocking. You may find it a bit greener when you reopen as the cover will trap in heat and promote algae growth.
The valve does not close properly, which may lead to hypertrophy (enlargement) of the heart because blood will pool in the chambers.
In a pool.
The pizza maker doesn't close properly, however it should close without any difficulty
Not if its grounded properly.
No as long as the skimmer section of the pool is properly supported like the rest of the pool
It's best if the water is cleaned before you close up the pool.
Buying a cover for the pool should take care of the situation. As long as it fits the pool properly
A person can fill an in-ground pool with cement in order to close it forever. People tend to make this decision when they no longer wish to care for the pool.
this year buddy
If its not closed properly water will leak out when the pump us running.