It depends on your water chemistry, if you need to drain an in-ground pool every few years to recycle the water. If your cyanuric acid level is out of control you should. If you keep it balanced there should be no need to drain it and refill. Take your water to a pool professional to see where your chemistry is at.
Drain WHAT? Water draining or Freon RECYCLE
Why would you drain your pool just becasue the water is hot? Never drain your inground pool unless you have first cut holes in the bottom of the pool to keep it from floating. If the water table in your area is high enough, your inground pool could "float" out of the ground, effectively ruining your pool.
No, then you have to refill it and that is a waste of water If it is an inground pool being dry will ruin the pool surface and in high water table areas the risk of turning it into a boat is very real.
NO however you should keep in mind that the ground water outside of the pool is not going to put pressure on it as this is capable of even lifting a concrete pool out of the ground.
How big is the star dust inground swimming pool.
you can back wash the pool and drain to proper level Throw a pool party with lots of energetic kids.
Every six months and water Jetted once every 2 years
Gas drillers and GE both reuse and recycle their water.
Definitely has a leak! Best to put the snorkel on and try to locate the leak by looking for tears in the liner.
They will have to recycle the water.
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Forget to turn of light, waste water, not recycle, etc.