I've used the plastic poultry waterers and they just give out after a year of service. If you're lucky to have one make it a year the plastic will turn brittle from sun exposure and break anyway. I used black rubber livestock bowls for many a year and they work well. Turn over and stomp out the ice when solid and the black solar gain keeps water wet for most days. Past few years have been using heated dog bowl for the deep of winter. Works great and has lasted two winters now. It's really only used three months of the year. Run an extension cord to the covered section of run.