Hi, i live in nj. Almost all of the day in the sun. My deck is 3 years old pressure treated pine. Never been stained or sealed. Do get a lot of mold a...

Hmmmm. You have no idea how sorry I am to hear this. There must be money to be made for someone to design a tool for this! Thanks very much for all yo...

Sorry but no we do not know of an easy way to do this.

Thanks for reply. I did some further research and I rented an orbital sander. took about 3 hours but it all came off. Thanks

There would be no advantage or reason to stain the undersides prior to installing the Underdeck.

Prep by stripping and brightening with the Restore A Deck Kits. Stain with Restore A Deck Wood Stain or TWP 1500 Series.

Oxidized wood fibers that did not come of fully with the prep. Please post a picture.

Thank you so much!

Yes, a two-toned deck would be best. Use the Flood Solid Stains for this.