hi all 
 looking at a large area of decking tommorow with ballistrade etc.
 iam assuming its proper pressure treated decking not some old floorboards screwed down.
 how do i clean it, i was assuming pw but lowish  pressure. do you deck scrub anything in as pre wash?
 and after does anyone re treat it with seal or varnish?
 where are you Rob ,Alan,Lee 

cheers
 john