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 -… 0 907 2 8363 I should have followed up on this thread. So, the pier foundation wasn't large enough on the side it was leaning towards, and the NBN cable went through the pier, just… 8 12130 |