Here is a project we did for a Las Vegas customer named Nancy. This enclosure not only covered her pool equipment but also extended to provide protection for the entire pool bringing it up to code.
This was a new pool install. Nancy did not want vinyl but she wanted something that kind of matched the vinyl look. So we went with a one inch by four inch rectangular top and bottom rail with 5/8 inch thickets fence slats spaced accordingly with solid backing.