17 GPM or
1020 GPH
14 GPM
or
840 GPH
10
GPM
or
600 GPH
7
GPM
or
420 GPH
Minimum sized pump required to meet peak demand without supplemental
supply
122
98
70
45
Normal seven minute *peak demand (gallons)
3
3
-
-
14
2
Dishwasher
18
18
18
-
35
5
Automatic Washer
3
3
3
3
3
5
Kitchen Sink
20
15
10
5
5
4
Toilet
8
6
4
2
2
4
Lavatory
70
53
35
35
35
5
Shower or Bath Tub
3 to 4
2 to 2-1/2
1-1/2
1
BATHROOMS IN HOME
TOTAL USAGE GALLONS
FLOW RATE GPM
SEVEN MINUTE PEAK DEMAND PERIOND USAGE
TABLE 1.
Step 1
(cont.)
B. Seven-Minute-Peak Demand