Helping restore the finnish on an exterior pressue treated wood deck. It's exposed to a fair amount of sun, rain, & debree from an oak tree. I've received mixed advice from the pros regarding a stain/water sealer regarding oil vs water based products. One said Behr water based stain with nano guard technology, another uses Sherwin Williams oil based sealer with tone in it for color, and another said they used a semi-transparent stain specially made by Wolman that is an emulsion of water and oil base. My neighbor wants the deck to be a dark reddish color and lowest maintenance possible. Any recommendations?