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It depends on flow.

2 PSI for 500 GPM

8 PSI for 1000 GPM

18 PSI for 1500 GPM

32 PSI for 2000 GPM

This is per 100' ft

If your flows are big, ie.

defensive conditions, you must relay for anything over a couple hundred feet in length.

Capt. Ridgeway

Tumwater

Fire

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12y ago

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