instaling Indiana plumber installer license prep class

What is the most desirable place to install a Backflow Prevention Device and/or Assembly?ī) in an accessible location above groundĬ) underground, with a minimum of twelve (12) inches of coverĭ) at or above ceiling height, to protect it from vandalismĮ) behind the boiler or equipment served, so it can be worked on when the equipment is removedĦ. It is possible for a perfect vacuum at sea level to raise water in a pipe approximately _ feet.ĥ. An Atmospheric Type Vacuum Breaker shall not be subjected to water pressure for periods than _ hours.Ĥ. The by-pass line of an approved backflow prevention assembly must contain an approved assembly of equal:ģ.

A Double Check Backflow Prevention Assembly test and maintenance report shall include all of the following information except the:Ĭ) test results of check valve number one (1)ĭ) test results of check valve number two (2)Į) differential pressure relief valve discharge readingĢ. The categories below list the required experience for each plumber certification level in Washington.1. All other out-of-state plumbers can present a comparable license from another state or show equivalent experience in the U.S. Washington has reciprocal certification with Idaho for journey level plumbers.

To become a certified journey level or specialty plumber in Washington, you must typically begin as a plumber trainee.

Medical gas and medical vacuum systems.Įxcept for domestic pump and pump and irrigation systems, certification is not required to install plumbing systems outside of a building (e.g., water lines connected directly to municipal water mains, sewer line connections, etc.).

Accessories (appurtenances) within the property lines of the premises.

Potable water building supply and distribution pipes.

You must be certified by the Washington State Plumber Certification Program to work in the plumbing trade in Washington.

Instaling Indiana plumber installer license prep class