Best way to seal my privacy fence
Hi everyone! I have a 6' privacy fence, made with pressure treated wood. I bought the house in '95, and the fence was there, and was somewhat weathered, so it's not a new fence. I initially used Behr premium semi-transparent waterproofing stain, then I moved on to Cabot semi-transparent decking stain on the outside of the fence, but that was years ago. I'd like to seal the fence again, and would love to use something that I could maybe spray on, like a water sealer? I feel like if the process of treating the fence isn't arduous, I'll be more likely to keep up with it every year or so.
I'm wondering if this will work over the stain, which is now several years old, and what products to use. Any suggestions on product to use, or avoid? Also, what prep is necessary? Thanks!