The answer will depend on where in the world the pool is.
If you want instant heat get a pool heater but if you are looking for something more economical then use solar panels.
Skin temperature is about 88 degrees F. A pool heated to 88 degrees is almost instantly comfortable.
I think it depends on weather the pool is heated. You want the pool to be a temperature that everyone can take. Also, outdoors will depend on the temp of your pool or any outdoor pool.
Not a lot of information here. 1. Is the pool heated? 2. Does it have a cover? Usually a heated pool needs a cover to keep the heat in the pool. If it isn't heated and there is no solar cover then the air temperatures are simply not warm enough to raise the water temperature. Other factors can be things like ground water and wind, all of which create greater heat loss.
A safe, comfort temperature for an outdoor pool in southern Florida would be about 85 degrees Fahrenheit. Most outdoor pools in Florida are not heated, and there is usually no problem in swimming in cooler water.
On a regular basis, we do not have a heated pool. On occasion, we will heat the back pool during Spring Break week only.
conduction
heated up to kindling temperature of the mild steel
yesand no if it is a normal swimming pool and 70 degrees then don't go swimmimg if your pool is heated then go for it because the heated pool will work it will make you much warmer HOPE THIS HELPED :]
The hard part is keeping a swimming pool cool in Fl. My pool in Cutler Ridge (south of Miami) would feel like warm bath water during the summer. It was easily over 88F, but there wasn't anything to be done about it. :-/
The heated, then the room temperature, then the frozen ball. It's the heated because of how fast the molecules are moving. :)
Undercooked describes foods that have not been heated to a safe temperature.
The temperature of an olympic pool is kept at 25-28C (77-82F)