Question about MSpa Tekapo

We often have minus 10 to minus 15 degrees in winter..can you leave it filled unused?

yes also filter system and uv filter.

this is my 3rd inflatable pool and the best i have ever had.
be sure to add aqua kristall minerals, the water is then 99% identical to seawater.
the system is also very quiet and economical.
highly recommended!!!!!!