> I wonder if the pool can tolerate freezing solid in the winter, or if it cracks the concrete? A lot of people have inground pools here in Quebec. AFAIK it's

> I wonder if the pool can tolerate freezing solid in the winter, or if it cracks the concrete? A lot of people have inground pools here in Quebec. AFAIK it's just a matter of removing some of the water before it freezes, to minimize the effects of expansion. It does tend to generate small cracks, but nothing that can't be patched over with annual maintenance.