I'm looking for a winter cover for new in-ground vinyl liner pool in New York (14x28) but as far as I can tell they come either all solid or all mesh. I understand there are real benefits to the hybrid models that are solid but with a mesh drain panel in center -- but only see that is expensive saftety covers, not winter covers that are secured with water bags, etc. Anyone aware of a winter cover with the integrated drain? Strange that it should not be available. Appreciated.