Waterproofing pinholes in Marsden Park NSW

Pinholes are the most repeated finding in the Marsden Park set: eleven separate records, in shower recesses, in a niche and at the main drain. A pinhole is a break in the applied membrane about the width of a pen tip, usually a burst bubble in the coat or debris trapped underneath. It will survive a glance from the doorway and it will not survive a proper look with light behind it. Once the tiles are down it is a leak waiting for a year or two before it announces itself through the wall of the next room.