You have to remove the Penofin. Strip and brighten to do this. Sand after all the wood. Try Defy Hardwood stains or Armstrong Clark.

No you do not have to remove all if redoing with another solid.

Follow the directions of the stain brand you choose. Almost all stain manufacturers want weathering to some degree and all want prep. Sanding onl...

There are others on the web who can't see the logic of weathering a deck, then chemically restoring it with cleaner, and in fact recommend not weather...

Need to weather and prep. No way around it: