We spend all day Saturday, and some of Sunday refinishing and weatherizing the deck.
It is a big 400 SF deck and it took a lot of elbow grease.
We opted not to pressure wash, because we have been told that it can cause splintering.
The deck is almost 13 years old and still in very good condition, so we wanted to be careful. What we did was scrub the deck with laundry soap, and get all the dry leave out from between the cracks with a butter knife.