Product review (1 stars): Do not buy this item, worked 2 times now nothing.  Total garbage!
Worked great on 2 occasions.  Now nothing.  My experience is exactly like numerous bad reviews for this item on here.  Do not waste your money.  I followed the detailed directions and instructions exactly.  How hard is it to freeze water?  Be careful the guts of this item are in many other very similar units rebranded with other brand names.