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convert dry pipe sprinkler system to wet pipe

Question asked by kavir on Dec 21, 2017
Latest reply on Dec 21, 2017 by cdafd

Good day all,

A client has an existing dry pipe sprinkler system (over 40-50 years since installed with minimal maintenance done) which they want to convert to wet pipe.

Does the code specify that the pipe needs to be replaced? pipe is SCH40 black steel.

If not, are there any special requirements for verifying integrity of piping besides inspection and pressure testing?

thank you.