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Table 6 Data on sprinkler system water supply reliability

From: A review of sprinkler system effectiveness studies

Description Source Unit Minimum Mean Maximum
Dual supplies (Brammer 2010) per demand 5.0 × 10 -9   2.4 × 10 -5
Town main (Brammer 2010) per demand 5.6 × 10 -4   1.1 × 10 -2
Pumped supply (diesel) (Brammer 2010) per demand 1.8 × 10 -3   3.8 × 10 -3
Elevated tank (Brammer 2010) per demand 1.9 × 10 -4   1.8 × 10 -3
Town main (Moinuddin et al. 2009) per demand   1.87 × 10 -4 3.72 × 10 -4
Gravity tank (Moinuddin et al. 2009) per demand   2.28 × 10 -4 2.28 × 10 -4
Storage tank (Moinuddin et al. 2009) per demand   4.64 × 10 -3 9.34 × 10 -3
Water supply line (per m) (Moinuddin et al. 2009) per demand   1.29 × 10 -5 2.18 × 10 -5
Town main (Ronty and Keski-Rahkonen 2004) failures/year 2.6 × 10 -4 1.0 × 10 -3 2.5 × 10 -3
Storage tank (Ronty and Keski-Rahkonen 2004) failures/year    6.5 × 10 -3
Pressure tank (Ronty and Keski-Rahkonen 2004) failures/year 1.0 × 10 -3 2.0 × 10 -2 9.3 × 10 -2