HomeMy WebLinkAboutDynamic Head CalculationPROJECT NAME:
PROJECT ADDRESS:
TOTAL DYNAMIC HEAD
DETERMINE MAXI
RECEIVED
FEB 21 2020
SADDLEBROOK POOL ST. Lucie County, Permitting
7875 SADDLEBROOK DR. PORT ST. LUCIE, FL
CALCULATION
FLOW RATE PER ANSI / ASPS -15 2013
MINIMUM FLOW RATE REQUIRED: 35 gpm / SKIMMER
1 SKIMMER PER 800 ft2 OF SURFACE AREA
POOLVOLUME _ = 13470 gal
TURNOVER TIME = 6 hr X 60, min./hr
MAXIMUM FLOW RATE = POOL VOLUME/TURNOVER
SPA FLOW RATE = 37.4 gpm MAX
360 min.
37.4 gpm
PIPE SIZES AT MAXIMUM SYSTEM FLOW RATE
BRANCH PIPING SHALL BE N/A inch
AT 6 fps MAX AT #N/A gpm
TRUNK PIPING SHALL BE 2 inch
AT 8 fps MAX AT 84 gpm
RETURN PIPING SHALL BE 2 inch
AT 10 fps MAX AT 105 gpm
PUMP MAKE/TYPE
HAYWARD MAXFLO VS SP2303VSP
MAIN DRAIN / COVER
VGB 2008
SIGNATURE/DATE
CONTRACTOR: ALL AMERICAN POOLS INC.
CERT. # CPC 057355
Sheet 1 of 3
APPROVED COVER RATE 175 gpm
SIGNATURE /DATE'
BENCHMARK ENGINEERING
BOWDOIN G. HUTCHINSON P.E.
CERT# 70878
PROJECT NAME:
SADDLEBROOK POOL
PROJECT ADDRESS:
7875 SADDLEBROOK DR. PORT ST. LUCIE, FL
TOTAL -DYNAMIC HEAD (TDH) CALCULATION WORKSHEET
DETERMINE MAXIMUM FLOW RATE PER ANSI / ASPS -15 2013
FRICTION LOSS FOR
2 inch SUCTION PIPE PER ft AT
84
gpm = 0.10 ft (PER TABLE)
FRICTION LOSS FOR
2 inch RETURN PIPE PER ft AT
105
gpm = 0.16 ft (PER TABLE)
165 ft. SUCT. PIPE
X 0.10 ftHEAD / ft =
16.5
TDH FOR SUCT. PIPE
170 ft. RETURN PIPE
X 0.16 ftHEAD/ft =
27.2
TDH FOR RETURN PIPE
TABLE: SMOOTH PIPE SCH 40 PVC / FLOW AND FRICTION LOSS PER FT
PIPE
DIAMETER
(in)
6 ft/sec
8 ft/sec
10 ft/sec
1
16
gpm
0.13
ft
22
gpm
0.23
ft
27
gpm
0.35
ft
1.5
38
gpm
0.08
ft
51
gpm
0.14
ft
63
gpm
0.21
ft
2
63
gpm
0.06
ft
84
gpm
0.10
ft
105
gpm
0.16
ft
2.5
90
gpm
0.05
ft
119
gpm
0.08
ft
149
gpm
ft
3
138
gpm
0.04
ft
184
gpm
0.07
ft
230
gpm
EO.
ft
4
238
gpm
0.03
ft
317
gpm
0.05
ft
397
gpm
0.07
ft
SIGNATURE / DATE
CONTRACTOR: ALL AMERICAN POOLS INC.
CERT. # CPC 057355
Sheet 2 of 3
0
S ✓� 1 1
FLISt
SSIO�P�\\\\
IIIIl\��i/7/2020
SIGNATURE / DATE
BENCHMARK ENGINEERING
BOWDOIN G. HUTCHINSON P.E
CERT# 70878 .
PROJECT NAME: SADDLEBROOK POOL
PROJECT ADDRESS: 7875 SADDLEBROOK DR. PORT ST. LUCIE, FL
MuFb VSPelfon, OComparison
70
— 230V
-- 3450 RPM
60
._ _.. ___115V
—3000 RPM
2400 RRM
—1725 RPM
1000 RPM
0
3 40.
-
30
x
—• -
20
'
\w
0
0
10 20 30 (40 50 50 to
eo so
now (GPM
TDH IN PIPING:
43.7 ft
FILTER LOSS IN TDH:
8.0 ft
HEATER LOSS IN TDH
0.0 ft
OTHER LOSSES IN TDH:
0.0 ft
TOTAL SIMPLIFIED TDH: 51.7 ft
NOTES:
1) PUMP OR HEATER MAKE / MODEL MAY NOT BE CHANGED
2) INSTALLATION SHALL COMPLY WITH MANUFACTURER'S IN
3) EQUIPMENT LOCATIONS MAY NOT BE CHANGED.
4) VARIABLE SPEED PUMP USE MAXIMUM FLOW IN CALCULAI
SIGNATURE / DATE
CONTRA(:TOR:
CERT. #
ALL AMERICAN POOLS INC.
CPC 057355
Sheet 3 of 3
\G\\HUTCy
ALLA���IN Ns, 02 i
to
P'
1/7/2020
SIGNAT // 100
BENCHMARK E EERING
BOWDOIN G. HUTCHINSON P.E.
CERT# 70878