The IBOSAD copper press tool I reviewed in a previous video worked well at first, but after using it for a bathroom remodel project, every joint started leaking after about a week. I had to open walls and replace every single joint made with this tool. Despite being marketed as compatible with the Viega-style fittings used in the USA, the press tool is actually designed for an unknown standard of fittings used overseas. These two systems are just different enough to be incompatible, which resulted in slow leaks that took days to appear.
![](https://i.ytimg.com/vi/cP8fJlKejtU/maxresdefault.jpg)