How can I warm my pool without having to buy a heater or use a solar cover?
Answers:
You want to heat the pool so you aren't cold when you swim, correct? In that case, you can save alot of money by heating yourself instead of the pool. (Buy a wetsuit).
Other answers:
Pee in it. ROFL
Pee in it. ROFL
Jeez, those are the only two options that I know of. Besides running hot water into it from a hose...but it will drain your houses hot water heater for awhile.
get a garden hose preferably black and a small submersible pump. Put the pump in the pool attached to the garden hose. snake the hose around the ground and end into pool. Presto: water heater
How do I learn to drive without getting into the car and going to driving school?
connect your garden hose to the hot water heater and drain it into the pool. You may get a little rust in you pool though but that can be vacuumed out. And you've got very hot water in the pool. But it won't be enough to fill it. But you can add more cold water from the house to fill it.
Maybe if you cross your fingers and wish really hard....
There isn't a way. You can do the black pipe and pump thing but that is comparable to a little boy peeing in the ocean. Get a solar cover and be done with it. Or else dose yourself up with "antifreeze" (vodka or tequila works well) before swimming!