What Ron said (I think he meant fittings) and I’ve seen many instances of grooved unlined DI piping within pump rooms (talk about heavy!) but if used on the potable side, I believe like Dave said, cement lined CL52.
TD In many companies DI has replaced CI for small screwed piping. Grooved fittings are DI. The only problem I could see is the connection method and restraint, and small leakage if using PE fittings on the pipe. On Fri, Jan 6, 2017 at 9:24 AM å... .... <[email protected] <mailto:[email protected]> > wrote: I don't know of a many good reasons to deny this design. If anyone calls you on your judgment, preempt their question by caveatting your decision using Section 1.5. Scot Deal Excelsior Fire & Risk Engineering gsm: +420 722 141 478
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