@administrator Ok, thank you for quick response

That is furring from over stripping. See here: There is nothing else to strip. You will need to sand to fix this.

@administrator I already had used cleaner and brightener, residue still there. I then used pressure washer and degreaser, nothing helped, residue is s...

Finish the stripping and then brighten all wood after to restore the color and lower the pH balance and even it out.

If it works, you should be good to stain.

@administrator thank you Scott! And then stain if it works? Or reapply brightener?

Try Bleach. 1 part bleach to 4 parts water. Apply and let sit for 10 minutes and then rinse well.

I used Restore-a-Deck products for tripping, brightener and applied restore a deck stain in light walnut. I’m very happy with results. I could have ...

Look at the Restore A Deck Stain or the Defy Extreme for this one. We like the RAD Products better. Keep the stain off the PVC.

You cannot stain it yet. See this about new wood: After proper wait and prep, look at Armstrong Clark Wood stains.

I have a 1200 sq ft deck. The decking is 2 weeks old, with railing being installed now. The wood is new, #1 pine, kiln dried, then pressure treated, t...