When I purchased the "bones" for the new pool adventure, one of the items was a nice set of steps. Percieved problem is, they were in the gross nasty pool when we bought it. I want to pressure wash them before they go in the new pool. How concerned should I be with any algea that is hanging on/in the steps?? The have been setting in the sun for about a month while we were getting the pool up. Didn't know if the algea would rekindle itself once put in water. Thoughts anyone??? Thanks!