Question regarding choice of planter. [View all]

I opted for an aluminum raised planter because my aluminum tools hold up better in Florida than galvanized steel, and then I realized I made one critical mistake. I plan to put this near the pool and chlorine and aluminum don't play nice together. The answer is a sealer. What sealer would you all recommend that is safe to use for edible gardening purposes?

Thanks in advance.

Oh, I prefer a clear sealer.