Thank you for your interest in Water Pumps Direct. The Wayne EEAUP250 should perform well for your application, however I would recommend that you place a grate or some type of filter over this window well in order to prevent debris from getting into that area and possibly clogging the pump intake. I would also highly recommend that you utilize the full 1-1/4" discharge port with the same diameter discharge hose and keep an eye on it when temperatures dip to freezing or below.