So long as the grouting is done correctly a tiled pool is much easier to keep clean and looking uniform. other then that there isn't that much difference.
Yes. It sounds like you need to hire a pool service to instruct you on a one time only basis. Take lots of notes. It is well worth the expense and far less than replacing the equipment or having to replaster.
In a large country like the US it is more practical to have a representative democracy than a direct one. With such a large and diverse population this form of government can be seen as much more practical.
Being Practical means... you can do allot of things so you have more than one use, or if something is practical that means it has more than one use and you can use it over and over again.
A screened in pool may be cooler thank a pool outside. This is because it will get more shade and may be out of the sun more.
A republic is more practical than a true democracy given the population we have.
5 more feet
a car costs more
Probably just having sex in a pool. Can't get more complicated than that.
Not a practical one
More water on TOP of you.
A swimming pool, a kilolitre
more water is on top of it putting more weight on the water at the bottom