439 20th ST POOL24-0006 DUVAL Hydrualics Form_1Simplified
Total
Dynamic
Head
(TDH)
Calculation
Worksheet
Determine
Maximum
System
Flow
Rate
Minimum
Flow
Rate
Required:
35gpm
per
skimmer
(required:
1
skimmer
per
800
sq
ft
of
surf.
area)
1.Calculate
Pool
Volume
_____________X
___________
X
7.48
(gal./cubic
foot)
=
____________________
(Surface
Area)
(Avg
Depth)
(Volume
in
Gallons)
2.Determine
preferred
Turnover
Time
in
Hours:
__________
X
60
(min
/
hour)
=_________________
(Hours)
(Turnover
in
min)
3.Determine
Max
Flow
Rate
________________
/
________________
+
______________
=
___________________
(Volume
in
Gallons)
(Turnover
in
Min)
(Pool
Flow
Rate)
(System
Flow
Rate)
4.Spa
Jets:
__________
X
____________
GPM
per
jet
=
____________________
flow
rate
(No
of
Jets)
(Jet
Flow)
(Total
Jet
Flow
Rate)
(For Single Pump pool/spa combo, use the higher of No. 3 or No. 4 in the following calculations for the pool & Spa)
Determine
Pipe
Sizes:
Suction Branch to be _______ inch to keep velocity @ 6 fps max. at _____ gpm Maximum System Flow Rate
Suction Piping to be _______ inch to keep velocity @ 8 fps max. at _____ gpm Maximum System Flow Rate
Return Piping to be _______ inch to keep velocity @ 8 fps max. at _____ gpm Maximum System Flow Rate
Determine Simplified TDH:
1.Distance from pool, to pump in Ft:___________
2.Friction loss (in suction pipe) in _______ inch pipe per 1 t. @ gpm = _____(from pipe flow/friction loss chart)
3.Friction loss (in return pipe) in ________ inch pipe per 1 t. @ gpm = _____(from pipe flow/friction loss chart)
4.________________ X ___________________ = ______________
(Length of Suction Pipe) (Ft of head/1 ft of Pipe) (TDH Suction Pipe)
5.________________ X ___________________ = ______________
(Ft of head/1 ft of Pipe)(Length of Return Pipe) (TDH Suction Pipe)
Flow and Friction Loss Per Foot
(Schedule 40 pvc Pipe)
Velocity
-‐
Feet
Per
Second
Pipe
Size
6
FPS
8
FPS
1.5"
37
gpm
0.08'
50
gpm
.14'
2"
62gpm
0.06'
82
gpm
.10"
2.5"
88
gpm
0.05'
117
gpm
.08'
3"
136
gpm
0.04'
181
gpm
.07'
Selected
Pump
and
Main
Drain
Cover:
Pump
selection
___________________________________
using
pump
curve
for
TDH
&
System
Flow
Rate
(Pump
model
and
size
in
HP)
Main
Drain
Cover_________________________________
(System
Flow
Rate
must
not
exceed
approved
cover
flow
rates)
(model
)
Notes:
Minimum
system
flow
based
on
minimum
flow
per
skimmer
of
35
gpm.
Determine
the
Number
and
Type
of
Required
In-‐floor
Suction
Outlets:
(Check
all
that
apply)
☐¤←3’ → ¤ ____________ suction outlets @ ____________gpm max. flow (see note
2) ☐¤ ¤ ¤ _____________ suction outlets @ ____________gpm max. flow (see note 3)
☐_____________ channel drain @ ____________gpm w/ _______ports (see note 4)
ANSI/APSP 5&7,
2013
Specifies
three
methods
for
determining
the
maximum
system
flow
rate.
The
following
simplified
TDH
calculation
is
one
of
the
methods
specified.
TDH
in
Piping______________
Filter
loss
in
TDH
(from
filter
data
sheet)______________
Heater
loss
in
TDH
(from
heater
data
sheet)______________
Total
all
other
loss______________
Total
Dynamic
Head
(TDH)______________
Velocity
-‐
Feet
Per
Second
Pipe
Size
6
FPS
8
FPS
1.5"
37
gpm
0.08'
50
gpm
.14'
2"
62
gpm
0.06'
82
gpm
.10"
2.5"
88
gpm
0.05'
117
gpm
.08'
3"
136
gpm
0.04'
181
gpm
.07'
4"
234
gpm
0.03'
313
gpm
.05'
6"
534
gpm
0.02'
712
gpm
.03'
TDH
Calculation
Options
(For
each
Pump)
Check
one
☐Simplified
Total
Dynamic
Head
(STDH)
Complete
STDH
Worksheet
–
Fill
in
all
blanks
☐Total
Dynamic
Head
(TDH)
Complete
Program
or
other
calcs.
Fill
in
required
blanks
on
worksheet
&
attach
calculations
☐Maximum
Flow
Capacity
of
the
new
or
replacement
pump
Notes:
1.If
a
variable
speed
pump
is
used,
use
the
max
pump
low
in
calculations
2.For
side
wall
drains,
use
appropriate
side
wall
drain
flow
as
published
by
manufacturer
3.Insert
manufacturer’s
name
and
approved
maximum
flow
4.See
installation
instructions
for
number
of
ports
to
be
used
5.In-‐Floor
suction
outlet
cover/grate
must
conform
to
most
recent
edition
of
ASME/ANSI
A112.19.8
and
be
embossed
with
that
edition
approval
6.Pump,
Filter
and
Heater
make
and
model
cannot
change,
and
equipment
location
cannot
be
move
closer
the
pool
without
submitting
a
revised
plan
and
TDH
calculation
worksheet
for
approval
Flow and Friction Loss Per Foot
(Schedule 40 pvc Pipe)
ANSI/APSP/ICC
Worksheet
Swimming Pool Energy Efficiency Compliance Information
Note: These Requirements Apply ONLY to the Filtration Pump
Maximum Filtration Flow Rate Calcutlations
Pool Water Voume______÷ 360 =______ gpm = filtration flow rate
Is there an Auxiliary load on the filtration pump? Yes___ NO____
If so, what is the auxiliary flow rate _______gpm
Maximum Flow Rate ______gpm (maximum auxiliary pool loads or
the filtration flow rate, whichever is greater.
The pool filtration flow rate shall not be greater than the rate needed
to turn over the pool water volume in 6 hours or 36 gpm whichever is
greater. This means that for pools of less than 13000 gallons, the
pump shall be sized to have a flow rate of 36 gpm or less.
Suction Pipe size @ 8 fps ________inch
Return Pipe size @ 8 fps ________inch
Filter Factors: (Cartridge .375) or (D.E 2) or (Sand 15)
____________÷ _____________=___________________
(flow rate) (filter factor) (minimum filter size)
Filter Make/Size __________________________________
Backwash valve? Yes_____ No______ (if yes, must be 2 inch min)
Pump Selection from APSP database on Curve A (less than 17000
gallons) or C (greater than 17000 gallons) (circle one)
Model_________________________________________ Flow Rate (low speed)______gpm @ ______rpm
Flow Rate (high speed) ______gpm @ ____ rpm
Date
_____________________________________________________
Contractors
Signature
_____________________________________________________
Print
Name
_____________________________________________________
Certification
Number
_____________________________________________________
Telephone
Number
Pump Controls
Standard time clock / 2 speed time clock _____or other ______
Heater Model _______________________________________
Notes: suction piping in front of pump inlet must be 4 pipe diameters
in length. Must have 18” of straight pipe after the filter for solar.
Swimming
Pool
Specifications
for:
Owner:____________________________________________________________
Address___________________________________________________________
City,
State,
Zip____________________________________________________
____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________