Browse Forums General Discussion Hi, I have an area of zincalume cladding encasing a number of external downpipes. Unfortunately one of them has been permanently stained by some diluted phosphoric acid -… 0 900 We have a new build and need to clean bricks around a newly constructed deck. Need advice about whether to clean bricks with acid prior to oiling the deck, or should we… 0 2582 2 8320 |