Xylem Wastewater (Technical Manual) - Manual (Page 8)

PAGE 8
Wastewater
Goulds Water Technology, Bell & Gossett,
Red Jacket Water Products, CentriPro
Flow Rate Calculation
Residential Sizing
BATHROOM COUNT
Number of Bathrooms Flow Rate per Minute
1 20
2 30
3 40
4 50
5 60
6 70
FIXTURE COUNT V = Value style fixture T = Tank Style Fixture
Fixture Type Count
Toilet V 6
Toilet T 3
Lav Sink V or T 1
Tub V or T 2
Shower V or T 2
Full Body Shower Add Flow rate: 9 to 65 Gallons per minute to total
Kitchen Sink V or T 2
Dishwasher V or T 4
Wash Machine V or T 8
Bidet V or T 3
Icemaker V or T 3
Hose Bib V or T 4
Fixture Quantity Count Total Count
Toilets 3 3 9
Tub and Shower 2 4 8
Full body shower 15
Lav Sink 1 3
Kitchen Sink 1 2 2
Dishwasher 1 4 4
Icemaker 1 3 3
Wash Machine 1 8 8
Hose Bib 1 4 4
Total 56
FIXTURE COUNT
Fixture Type Count
Toilet V 10
Toilet T 5
Pedestal Urinal V or T 10
Stall Urinal V or T 5
Lav Sink V or T 3
Kitchen Sink V or T 4
Tub V or T 4
Shower V or T 4
Dishwasher V or T 4
Icemaker V or T 3
Commercial Wash. Machine V or T 6
Hose Bib - Commercial V or T 6
Full Body Shower Add Flow rate 9 to 65 Gallons per minute to total
Fixture Quantity Count Total Count
Toilet 50 10 500
Lav Sink 50 3 150
Shower 50 4 200
Full body shower 50 15 750
Dishwasher 50 4 200
Icemaker 50 3 150
Wash Machine 10 6 60
Dishwasher 10 4 40
Hose bib 2 6 12
Total 2062
PLUMBING WATER SYSTEMS
Fixture Units
“Hunter” Estimate Curves for Demand Load
1 – Flush Valve Curve 2 – Flush Tank Curve
Demand GPM
1
2
0 20 40 60 80 100 120 140 160 180 200 220 240
20
40
60
80
100
1 – For system predominantly for flush valves
2 – For system predominantly for flush tanks
Commercial Sizing
OCCUPANT SIZING
Sewage Selection Chart for Larger Capacity Systems
Gallons per Minute
Number of Homes, T
railers, P
eople, etc.
50 100 150 200 250 300 350 400 500 600 700 800 900 1000
10
20
30
40
60
80
100
120
160
200
400
600
800
1000
1500
2000
(A)
(B)
School/Students
Office/P
eople
Factory/Employees
Trailer P
ark/Trailers
Motel/Rooms
Apartments
Homes in Subdivision
PLUMBING WATER SYSTEMS
Fixture Units
“Hunter” Estimate Curves for Demand Load
Demand GPM
1
2
0 500 1000 1500 2000 2500 3500
100
500
200
300
400
1 – For system predominantly for flush valves
2 – For system predominantly for flush tanks
180
800