I found this article after I read about your problem, I hope it helps.....
Kitec Brass Pipe and Fittings Lawsuits
Class action lawsuits have been filed against the manufacturers of "Pex" pipe and "brass fittings" used in residential construction: Zurn-Pex has been sued, as has Kitec.
Kitec Pex Pipe and Fittings:
Kitec pipes and fittings may fail prematurely causing leaks and water damage to your property. At least one expert evaluation has found that Kitec pipes have a manufacturing defect that can cause corrosion in the pipes. Corrosion can result in leaks and other problems with your plumbing system.
Kitec consists of flexible aluminum pipe sandwiched between an inner and outer layer of plastic pipe (PEX Pipe). Kitec generally comes in two colors: blue (for cold water use) and orange (for hot water use). The pipes are manufactured by IPEX USA LLC and have been used in houses as far back as 10 to 15 years ago.
Kitec pipe and fittings fail when they are exposed to water because of a chemical reaction known as dezincification, which results in reduced water flow and leaks. Dezincified Kitec pipe and fittings cause damage not only when they burst and leak, but also impair the ability of a home's plumbing system to effectively provide water to appliances and fixtures.
If you or someone you know have incurred property damage or economic losses due to failed Kitec pipes, or if you believe Kitec pipes may have been used in your home, contact Audet & Partners at 800.965.1461 and ask to speak with attorney Michael McShane.