cleaning deck

We purchased our condo in the summer of 2010 and the two composite decks had been cleaned and looked beautiful. Last year, not so much. We attempted to clean with various products and they still looked bad. This year after a lovely western Washington winter, I am mortified at how bad they look...

hello and thanks in advance for 1 reading this and 2 helping if you can :) we have a back deck approx 15 x 20 feet in size ... it's made of ironwood we were told when we bought the house 6 years ago, and it's looked dark and worn out sense then now that my 2 year old and i are getting...