If the end of the hose is running in a pool of water, yes
No running. No diving in the shallows water.
Yes, the pool pump typically needs to be running when the pool heater is operating. This ensures proper water circulation, allowing the heater to efficiently warm the water and preventing overheating or damage to the heater. Additionally, running the pump helps distribute the heated water evenly throughout the pool. Always check the specific manufacturer's guidelines for your equipment for optimal operation.
That depends on the size of the pool and how fast the water is running that is filling it.
All the water dissapears.
no, the pool must be empty
The water will just be re cycled without being cleaned, the sand removes minute particles of solids.
NO!
Then you can't swim
So long as there is water coming through the pump when it is running it doesnt matter what the water level in the pool is.
YES if you keep water running lol
The stone gets wet.