Might need to use a an airless sprayer instead of a pump sprayer.

See this about new wood: br /> An experienced professional can easily pressure wash a deck without damaging the wood.

I have a similar situation - about to install a new 5/4 cedar deck. But I am a bit confused by advice to let the deck age, then remove the aging chem...

If it looks good then just leave as is. You can always add another coat next year if needed.

Best to strip all. Use the Restore A Deck stripping kits. Stain with TWP 100 Series.