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I am a foreigner would like to under the difference between sets of filters and filter sets? Are similar or same? Thank you

Spkreng - It is a brand new system for 4 buildings. How many sprinkler heads in 1 1/4" pipe? The designer got 18 heads for 1 1/4" pipe. Thank you

Travis - 5 flow at minimum at 38 gpm at 24 psi. spkreng - Yes, there is a fire pump house draw water from the pond. Thank you all for quick respond.

Here is the remote area cal. Remote area - Light Haz. Density - 0.10gpm/ft@ for 1500 (actual 1530 sqft) Total head - 5 K-Factor - 8 System Flow Demand - 300 GPM System Pressure demain - 90 Psi Base of Riser - 92...

I have a sprinkler contractor designed a 2 inches main for entire building (approximately 120 sprinkler heads). It is no a loop system! Is the sprinkler need to be sized per NFPA table 22.5.2.2.1? It appears to me that at least 4" main need for entire building. Thank you.

Would you all give me suggestions how to size the fire pumps for the below criteria Given: 1. Draw water from canal 2. Pump station to be located 200 feet from the most hydrant 3. 3 buildings (total sqft 35,000) 4. Light hazard 5. The civil engineer layout the route with 6" DIP 6. all 3...