To clean deck, mix 1 part Cabot’s Deck Clean and 4 parts water in bucket. Use stiff broom to scrub decking with solution. Leave for 20 minutes, then clean with pressure washer.
To install extra posts to support balustrade, use power saw to cut a slot the same width as post in face decking boards.
Use power saw, hammer and wood chisel to cut notches in post so it will sit over deck frame. Make notches deep enough that the new post is in line with existing posts. Position post so it extends 960mm above deck and below to 50mm above ground level.
Put post in position. Using drill fitted with 10mm bit, drill through post and deck bearer. Thread a 150mm galvanised cup head bolt through hole, attach washer and nut, and use spanner to tighten. Check post for plumb then repeat to install a second bolt.
To install wall post, drill 10mm holes through top, middle and bottom of post, positioning each hole at the centre of a brick. Switch to 10mm masonry bit and drill through hole into bricks. Insert 150mm masonry screw and tighten.