Good Evening all,
What is the difference between AWWA compliant ductile iron pipes and ISO/EN compliant ductile iron pipes? What may go wrong if I replaced them?
The standard you are required to meet,,
For the contract
For the city, state, country the job is in
For whoever else had authority over the job
If it's a potable water supply under jurisdiction of a public water supply, EPA requires AWWA Standards be followed. Plumbing code for residential/commercial water supply may require NSF approval. Check with the AHJ as to the application of appropriate standard or call a reputable licensed plumber.
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