Recently, RECO released an article on material facts that mentioned how the issue relates to Kitec plumbing (sometimes referred to as a Kitec system).
A number of registrants have asked for more information about Kitec itself.
Kitec plumbing was commonly used in homes built between 1995 and 2007, and otherwise for general plumbing repairs or renovations. The Kitec system was sold under a number of different brand names and in a variety of colours, and it consists of pipes and fittings. In 2005 it was recalled because the pipes and fittings have a tendency to corrode quickly and can fail entirely, which can lead to flooding.
Kitec can sometimes be identified by examining the pipes/fittings around the water heater, or beneath sinks. This resource lists the various brand names that were used for the pipes.
There is also a class action settlement regarding Kitec, which will be accepting claims until early 2020. The settlement website has helpful information.
This article on Moneysense.ca provides a helpful overview of the Kitec issue.
Further resources on Kitec include: