Pipe may have some problems due to the troubles occurred in the fittings. If you see water leaking from the copper or brass pipes, the pipe fittings may break down. Leaky pipe problems like this often happen simply because of disadvantages of brass fittings.

Certain pipe systems used plumbing connections known as yellow brass fittings. These brass fittings are subject to a process called dezincification which can cause catastrophic leaks and damage to homes, apartments, condos and office buildings.

Brass is a copper alloy made of zinc and copper. These brass fittings usually come in two varieties: red and yellow. The more yellow the pipe, the more zinc it has in it. Dezincification will weaken the structure of yellow brass fittings and leaves them prone to pinhole leaks. This type of corrosion in yellow brass fittings starts on the inside of the fittings, so it's frequently hard to detect until it's too late.

Eventually, however, the process of dezincification in the yellow brass will create a pinhole where water will slowly leak through the hole and leave behind mineral deposits on the outside of the brass fittings. As you might expect, the pinhole leak will either continue to grow or the water pressure will push through the mineral deposits, and you'll have an indoor sprinkler on your hands. Many pipe brass fittings and valves are made with yellow brass, and they are prone to the same sets of problems.