HomeMy WebLinkAboutOWTS Engineer's ReportOnsite Wastewaten Treatment System Report
Aspntt VInw Rexcn
TBD CR12O
Gannnln Coururv, CO
The proposed Onsite Wastewater Treatment System (OWTS) for Lookout Mountain in
Garfield County Colorado has been designed to comply with the most current edition of the
Garfield County OWTS regulations.
63
Lt/LL/2
AnthonyAlfini, PE
RFE Project No. 2024-63
Contents
1.0 Genera1............
Lt ExistingSite......,......
1.2 Existing Utilities
1.3 Soi1Conditions.......................
2.0 Proposed Construction
2.L Setbacks
3.0 OWTS Overview...
3.2 SepticTank...........
3.3 Pump System
3.4 Distribution.......
3.5 SoilTreatment Area Design ...
3.6 Pump Design.....
Appendices.
Appendix A: Soil Profile Test Pits
Appendix B: Design Drawings
Appendix C: OWTS Calculations
2
2
2
2
4
4
4
4
4
4
5
5
5
6
Appendix D: Product lnformation.
7
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The project site is located at County Rd 120, in Garfield County. The Garfield County parcel number
for the 35.95-acre property is 218572402034.The site is accessed from County Rd 120. The
property is bordered by a single-family residential lot to the south, Bureau of Land Management
property to the north and west, and a private undeveloped Iot to the east. There are no existing
structures on the property. Two wells exist on the property-one is dry and will be abandoned and
one is producing. There are currently no existing onsite wastewater treatment systems (OWTS) on
the property. The ground cover ofthe site is comprised oftrees, shrubs and other vegetation. The
site slopes generally from northwest to southeast on the northern portion of the property and
northeast to southwest on the central and western portion of the property, ranging from 0 to 25o.
The soils of the site are classified as Hydrologic Soil Group (HSG) 'C' and 'B' by the National
Resource Conservation Service. The site is not located near or adjacent to any special flood hazard
areas.
Site
l-ocation
i J:; al
Figtrt 1 -- Viei*iry h4x1s
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The residence has a water service line that runs along an access road. This line brings water from
well in the east portion of the property to the site. It will be extended to a proposed water storage
tank north of the site. and is connected to the shared well on the northeaster portion of the
property.
3."3 S*aT{,*m&i-tz*w*
Two soil profile pits were excavated to a depth of approximately five feet in the vicinity of the
proposed septic field on October L1.,2024. An excavation depth of five feet was achieved before
encountering bedrock. Groundwater was not observed in either pit. Soil samples were collected
from both pits at the proposed infiltrative surface depth-approximately four feet below the surface.
evaluation was performed. A Long-Term Acceptance Rate (LTAR) of the native soil was developed
from the testing. Pictures of the test pits and samples are shown in Appendix A.
2
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[;ignr* li * \t>il Ti,valx.*ti*ut fi'r:rir Sr:il {}it ?
Both soil samples were tested on October 15,2024. More than 35% of each soil sample was
retained on or above the No, l-0 sieve, indicating that these samples are more than 35% rock by
volume. The soil that passed through the No. 10 sieve was tested according to the USDA NRCS Gulde
to Texture by Feel. The soil from Pit #1 and Pit#2 felt sandy to the touch, remained in a ball when
squeezed and formed a weak ribbon less than 1 inch long, indicating that it was Sandy Loam (Type
2A) which has a LTAR of 0.5 gallons per day per square foot.
3
?.S Fr*pmsed fr c*stx"uctiona
Two tiny homes are proposed to be constructed on the site. Additionally, a water storage tank will
be constructed north of the tiny homes to supply the homes with water. The influent from the two
tiny homes will gravity flow approximately 300 feet to a 1500-gal septic tank, which will be located
south of the tiny homes (refer to Sheet C9). The influent will be stored in the tank until it is pumped
out of the tank to the soil treatment area (STA).
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According to Table 7-1 of the Garfield County OWTS Regulations, the soil treatment area must be a
minimum of 100 feet away from the onsite wells, 20 feet from structures and 25 feetfrom any
potable water supply line. The septic tank must be 50 feet from onsite wells, 5 feet from structures
and l-0 feet from any potable water supply line. Sheet C7 shows that all these conditions are met
with the proposed OWTS design.
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One OWTS will be used to treat wastewater from the tiny homes. Additional storage in the tank and
treatment area has been provided to accommodate an additional three tiny homes. This system is
designed in accordance with the Colorado Department of Public Health and Environment's
(CDPHE) Regulation 43 and Garfield County regulations. The effluent from the OWTS will achieve
Treatment Level 1 (TL-1).
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Colorado Regulation 43 states that the estimated daily wastewater flow per tiny home unit is 150
gallons per day (gpd).As the proposed OWTS system was designed to accommodate up to five tiny
homes, the total daily design flow is 750 gpd (150 gpd per tiny home x 5 tiny homes).
3.7" S*pkzeTmzzk
One septic tank is proposed in the OWTS. Influent from the tiny homes will gravity flow
approximately 300 feet to the tank. The gravity line will be installed with a 270 minimum slope' The
minimum tank size for two tiny homes residence is 1,000 gallons (Table 9-1), however, a 1,500-gal
tank was utilized in the design to accommodate up to five tiny homes. A 1,500-gallon tank with a
high-head pump will be used for primary treatment of the effluent. The first chamber will hold
more than half of the required effective volume as required. The second chamber will house the
pressure distribution pump.The septic tank dimensions and layout can be found in the design
drawings in Appendix B.
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To pump the effluent from the septic tank to the STA, the static head and friction head loss were
calculated to determine the total dynamic head for the system. The conveyance pipe material,
diameter and length, bends, fittings, valves, and static head were modeled to create a system curve.
The minimum pumping requirements were defined from this system curve. An Orenco PFs005
submersible effluent pump was selected for the application. The pump, pump package and float tree
4
product cut sheets are provided in Appendix D.
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The effluent from the septic tank will be pumped from the tank to the automatic distribution valve.
The pump will discharge the effluent through a pressurized 1.25-inch Schedule 40 PVC distribution
pipe to an Orenco V6606 automatic distributing valve [ADV). The ADV will distribute effluent to the
six rows of chambers in the STA. Each row of chambers will contain a 1.5-inch Schedule 40 PVC
distribution lateral, which will run the length of the row The laterals will be suspended from the
top of the chambers and will have a 1/B-inch orifices spaced every four feet.
The pump system will have a cold weather discharge assembly and a weep hole will be provided to
allow the effluent to drain back into the tank. The distribution pipe upstream of the ADV will be
sloped back towards the tank, allowing the effluent to drain back to the pump basin when the pump
shuts off and avoiding effluent in the line from freezing'
The dosing volume was determined by summing the volume of piping from the tank to the STA and
the volume of effluent needed to apply t/zto 7 inch depth of effluent to each trench per dose. The
elevations of the floats in the dosing chamber will be set to deliver this dosing volume. See the
Appendix C for OWTS Calculations.
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The required treatment area for this system was calculated to be 336 SF, however, 840 SF of
treatment area has been provided to accommodate up to five tiny homes. This treatment area will
be provided with a pressure-dosed trench system consisting of 72 total Infiltrators Quick4 Plus
Standard chambers, which will distribute the effluent to the receiving soils to achieve TL-1.
The STA will consist of 4 rows of trenches with 1B chambers in each row, resulting in a tolal of 72
chambers. The width of each trench will be three feet, and the trenches will be separated by four
feet. The soil analysis indicated R-type soil in the STA, The soil type was determined to be R-1
Option 2, as more than 35olo of the sample was rock. To achieve TL-1, the first 4 feet of material in
the trench will be removed, mixed and replaced with the mixed material. The bottom of the
infiltrators will be installed at a level that is approximately 1 foot below existing grade, which will
provide 4 feet of separation from the infiltrators to the bedrock. See the Appendix C for OWTS
Calculations.
3.6 WlaxzupK**szg;un
The Orenco pump selection software was used to determine the total head loss for the system.
Given the distribution pipe material, size, and length,lateral and manifold pipe material, size, and
length, maximum elevation lift, orifice size and spacing, and the residual head at the last orifice, a
system curve was generated. This was used to determine the minimum pumping requirements' The
Orenco Pump Select computer program was used to determine the pump that would be the best fit
for this system. The Orenco PF5005 High Head Effluent pump. The pump will be part of an Orecnco
Biotube pump package system. The pump curve and pump product information can be found in
Appendix D.
5
4"0 Maintenance
The Owner will follow the operation and maintenance requirements set forth in Section 43.14 of the
pitkin County OWTS Regulalions and per the rnanufacturer's recommendations. Below is a maintenance
schedule for the OWTS.
Everv 2 vears or As NeededEvery 5 months or High-Alarm AlertPump System
ekaned I Put*pedInepectian f Maintena.nceCornpanant
6
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Design Flow {gpd}750
Minimum Tank Size 1500
ITAR 0.20
Effluent lication Factor 0.8
A z*w *n & z x {, : ffi Vql' H" ffi { *,8 *.pslmtx axzs
llouse Size (ft2)
Number of Bedrooms
Flow Per Person {gpd)
Additional Flow
2440
5
75
0
TRENCH STA
BED STA
FOR HLT EFFLUENT*
840
TRENCH STA lr
BED STA
FOR TL1 EFFTUENT
Quick 4 Plus Stondard
Quick 4 Plus Low Profile
Quick 4 Plus Hioh Copocitv
INFITTRATOR SYSTEMS INC UNITS
Arc 18 (78" wide trcnch)
Arc 24 (24" wide trench)
Arc i6
Arc 36 HC
Arc 36 LP
UNITSADS PIPE INC
a
10
17
24
31
?a
280
140
96
72
56
48
283
143
oo
75
EO
51
70
70
72
72
70
72
848
848
872
872
848
872
840
1400
1632
1724
1736
1824
1
2
3
1
5
6
70
35
24
18
14
12
Area (ft2)
Excavation#infiltrators/ro Total#ro*.lnfiltrators
Total
of System
(ft1
Length of
System + End
Caps (ft)
Width of
System (ft)
Length of
System (ft)
s
F4
;&
f1
s
Biotube@ ProPaK" 60Hz Pump Package
{Iffit
Control panel
Applications
The Biotube ProPak Pump Package is designed to filter and pump
effluent from a one- or two-compartment septic tank or pump tank to
gravity or pressurized dispersal,
Packages for on-demand dosing or timed dosing at 1 0, 20, 30, and
50gpm (0.6, 1.3, 1.9, and 3.2Usec) and 50Hz are available.
General
0renco's Biotube ProPak Pump Package makes it simple to select and
install the conect pump and controls package. lis patented Biotube
pump vault technology eliminates the need for separate dosing tanla.
The pump vault also allows removal of the effluent filter for cleaning with
no need to remove the pump vault or pump, which simplifies seruicing.
For more information on specific ProPak components and options, see
the following Orenco technical documents:
. S-Series Simplex Control Panels (NTD-CP-S-1)
o MVP Sinplex Control Panels (NTD-CP-MVP-1)
e Ertemal Splice Box (NTD-SBEX-I)
. Splice Eoxes (NTD-SB-SB-1)
. Discharge Assemblres (NTD-HV-HV-1)
o HDA Discharge Assemblies (NTD-HDA-1)
t PF-Series Submersible Effluent Pumps: 1-Phase, 60-Hz, 4-inch
(1 00-mm) (NTD-PU-PF-1 )
o PVA-Series 4-in. (100-mm) Submersible Effluent Pumps
(NTD-PU-PVA-1)
. Universal Biotube Pump /aults (NTD-PVU-1)
. PVP-Series Biatube Pump Vaults (NTD-PVU-3)
o PV-Series Biotube Pump Vaults (NTD-PVU-2)
External
splice box
Float stem
Float col
switches
(2 or 3)
Vault in
holes
Biotube
filter cartridge
Float
Discharge
Float bracket
Pump vault
4in (100mm)
submersible
effluent pump
Biotube ProPak 60Hz PumP Package
0rcnco Sy$temso . 80{t-348-9843. +1 541-459'4449. $ww.orsnco.c0m t{TD-BPP.I
RoY.5 O mi/21
Pags 1 ot 2
Product Code Diagram
BPP.t l
Discharge assembly; details:
SD1 = HVl oOBCFCX; field-cut, l in PVC, ball valve, check valve, flow control, l 0gpm pumps only
SD2 = HVl 00BCX; fleld-cut, 1 in PVC, ball valve, check valve, 1 0 0r 20gpm pumps
SD3 = HVl 25BCX; field-cut, 1 .25in PVC, ball valve, check valve, 30gpm pumps
SD4 = HV200BCX; field-cut,2in PVC, ball valve, checkvalve,50gpm pumps
CWl = HVlo0BCFCX+HVCWl00-KlT; field-sei, linPVC,ball valve,checkvalve,flowcontrol, l0gpmpumpsonly
cwz =
CW3 =
CW4 =
DB1 =
DBz =
DB3 =
HDl =
HD2 =
HD3 =
HD4 =
Pump vault height, in (mm), for '1Bin (450mm)
48 = 4B(1219)PVU-Series 60 = 60
57 = 57 (1448)PVU-Series 55 = 55
68 = 68(1727)PW-Series
diameter filter:
{1524) PVP-Series
(139fl PV-Series
PF30051 2; 30gpm (1 .9Usec), 0.50hp (0.37kW), 240V
PF3007l 2; 30gpm (1 ,9Usec), 0.75hp (0,56kW), 1 20V
PF30 1 0 1 2; 30gpm (1 .gusec), 1.00hp (0.75kW, 240V
PF50051 1 ; 50gpm B.2Usec), 0.50hp (0.37k\ 4, 1 20V
PF500512; 50gpm B.2Usec), 0.50hp CI.37kW, 240V
PF50071 2; 50gpm B.2Usec), 0.75hp (0,56kW), 240V
PF501012; 50gpm (3.2Usec), 1.00hp (0,75kW), 240V
PVA] 0051 1 ; lOgpm (0.6Usec), 0.50hp (0.37kW), 120V
PVA300511 ; 30gpm (1 .Susec), 0.50hp (0.37kW, 120V
PVA50051 1 ; 50gpm (3.2Usec), 0.50hp (0.37k\ 4, 1 20V
HV1 00BCX + HVCW100-KlT; field-set, I ln PVC, ball valve, check valve, 1 0 0r 20gpm pumps
HV1 25BCX + HVCW1 25-KlT; field-set, 1 .25in PVC, ball valve, check valve, 30gpm pumps
HV200BCX + HVCW200-K|T; field-set, 2in PVC, ball valve, check valve, 50gpm pumps
HVl00B-DB; field-set, ball valve, drainback, 1 0 or 20gpm pumps
HV1 258-DB; field-set, ball valve, drainback, 30gpm pumps
HV200B-DB; field-set, ball valve, drainback,50gpm pumps
HDM412SFCASLC-FS; field-set, 1 .25in hose, flow conlrol, P01 (PF10051 1 CV) pump only
HDM4125ASLC-FS; field-set, I .25in hose, P01 (PF1 0051 1 CV) pump only
HDM41 2SCFCASLC-FS; field-set, 1 .25in hose, check valve, flow control, 1 Ogpm pumps only
HDA241 2SCASLC-FS; field-set, 1 .25in hose, check valve, 1 0, 20, or 30gpm pumps
Splice box optlons:
SB = lnternal splice box
SX = kternal splice box
Float switch & pump cord lengths, ft @:
10 = 10 (3)
20 = 20 (6)
Control panel; float switches:
51'1 = 51;3P
S12 = SIEIMCT:3P
S13 = SIHR;2P
S14 = S1PTR0;2BN
S15 = SIPTROFIMCT;2BN
516 = S1R0;3PN
S17 = SIROE]"MCT;3PN
S1B = SIR0EIMCTSA;3PN
519 = SlR0MTSGR-NC;3PN
MVP-S1DM;3P
MVP-SIDMHT;3P
MVP-SIDMHTSA;3P
MVP-S1 DMHTMTSGR.NC; 3P
MVP-S1 DMOEMAND); 3P
MVP-S2DM;3P
MVP-S2DMHI;3P
MVP-S2DMHTSA;3P
P12 =
P13 =
P14 =
P15 =
P16 =
P17 =
P1B =
DOn _
P91 =
P92 =
M11 =
M12 =
M13 =
M14 =
M15 =
M21 =
M22 =
M23 =
Submersible effluent pump model; details:
P01 = PF] 005 l l CV; 1 0gpm (0,6Usec), 0.50hp (0.37Kw), 1 20V
for HDl and HD2 only
P02 = PFl0051 1 ; 1 0gpm (0,6Usec), 0.50hp (0.37kW, l20V
P03 = PF10051 2; I 0gpm (0,6Usec), 0.50hp (0.37kW, 240V
P04 = PF100712; IOgpm (0,6Usec),0.75hp {0.56kW),240V
P05 = PFl0101 2; 10gpm (0.6Usec), 1 .00hp (0.75M, 240V
POB = PF20051 1 ; 20gpm (1 .3Usec), 0.50hp (0.37kW), 120V
P09 = PF200512; 20gpm (1 .3Usec), 0.50hp (0,37kW, 240V
Pl 0 = PF201012; 20gpm (1 ,3Usec), 1 .00hp (0.75kW, 240V
Pl1 = PF30051 1 ; 30gpm ('l .9Usec), 0.50hp (0.37kW, 1 20V
Biotube@ PmPak-
[m-BPP-l
RoY.5 O lB/21
Paga 2 of 2
Orcnco Systemso . 800-348-9843 r +1 541 -459-4449 . wwuorenco,com
a
PF-series Submercible Effluent Pumps:
1 -Phaso, 60-Hz, 4,-tnch (1 00-mm)
Applications
Our PF-Series 4-inch (100-mm) Submersible Effluent Pumps are
designed t0 tansport screened effluent (with lowTSS counts) from
septic tanK or dosing tanks, These pumps are constructed of light-
weight, conosion-resistant stainless steel and engineered plastics, and
are field-serviceable and repairable with common tools. They're also
CSA- and Ul-certified to U.S. and Canadian safety standards for efflu-
ent pumps.
PF-Series pumps are used in a variety of applications, including pressur-
ized drainfields, packed-bed filters, mounds, aerobic unih, effluent ini-
gation, liquid-only (effluent) sewers, wetlands, lagoons, and more. These
pumps are designed to be used with a Biotube@ pump vault or after a
secondary treatment system.
-
Discharge connection
Franklin liquid
end
-
Suction connection
Franklin
Super Stainless
motor
Featu res/Specif ications
To specify this pump for your installation, require the following:
o Minimum 24-hour run-dry capability (liquid end) with no deterioration
in pump life or performance.
r 1d-inch (3-mm) bypass orifice to ensure flow recirculation for motor
cooling and to prevent air bind
. Liquid-end repair kits available for better longterm cost of ownership
. TRI-SEALru floating impeller design on 10, 20, and 30 gpm (0.6, 1 .3,
and '1.9 Usec) models; floating stack design on 50 and 75 gpm (3.2
and 4J Usec) models
. Franklin Electric Super Stainless motol rated for continuous use and
frequent cycling
. Type S00W 600-V motor cable (model PF751512 uses 14 AWG,
SJ00W 300-V corO
. N1t awlicable for 5-hp (3.73 kW models
Standard Models
See specifications chart on page 2 for a list of standard pumps. For a
complete list of available pumps, call 0renco.
Product Code Diagram
PF Itt l t _tt l-
Cord length,
Blank = 1030 =30
Ct-K = CIickIghf" compatlble
ft (m)J(3) 20 = 20 (6)(e) 50 = 50 05)
Check valve:
Blank = no internal checkvalveCV = lntemal checkvalvet
Voltage, nameplate:1=115. 2=230
Frequency:
1 = slngle-phase 60 lE
Holsepohler (k\/!4:
05 = # hp (0.34 07'l! = t hp (0,75) 15
20 = 2 hp (1,50) 30
50 = 5hp(3,73)
% hp (0.56)
1,, hp (1.1 1)
3 hp (2.24)
Nomlnal llow gpm (Usec):
10 = 10(0.6) 20 = 20(1.3)
30 = 30 (1.9) 50 = 50 (3.2)
75 = 75$n
Pump, PF Serles
- t6-hp (0,37 klv) only
iAvailabls for 1 0 gpm (0.6 Us$), 12 hp (0.37 kVU
t Nob: 20-ft cords are available only for pumps throuoh 1 tt hp
Franklin Electnic
LFEOSBO
182053896
I{TD.PU.PF.l
Bov. t0 O 0ll2t
PagB 1 ot 4
0runco Systemso r fl10-348-9843 r +1 541-459-tlll9 ' $mw.0r8nco'c0m
Specifications
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PF100511 e 10(0.6) 0.50(034 1 1 15 120 12,7 12.7 1 14 in. GFP 23.0 (660) 16 (406) 26 (1A 300
PFl 0051 1 CV e 1 0 (0.6) 0.50 (0 34 1 1 15 120 127 12.7 1 Tq in. GFP 23.0 (660) 16 (406) 26 (14 300
PF1oo512 s 10 (0.6) o.5o (o 34 1 230 240 6.3 6.3 1 14 in. GFP 23.0 (660) 16 (406)26(14 300
PF1007t2 4.5,e 10 (0.6) 0.75 (0 56) 1 230 240 8.3 8.3 1 14 in. GFP 25.9 (658) 17 (4s21 30 (14) 300
PF101 01 2 5,6'e 1 0 (0.6) 1 .00 (0 75) 1 230 240 9.6 9.6 1 /r in. GFP 27.9(t09) 18 (454 33 (15) 100
PF20051 1 ' 20 (1 .3) 0.50 (0 34 1 115 120 12.3 12.5 1 % in. GFP 22.3 (566) 18 (454 25 (11) 300
PF200512 e 20 (1.3) 0.50 (0 34 1 230 240 6.4 6.5 1 /r in. GFP 22.5 (5721 1 8 (454 26 (14 300
PF201012 4,5,e 20 (1,3) 1.00 (0 75) 1 230 240 10,5 10.5 lTqin.GFP 28.4(21l' 20(508) 3305) 100
PF2015124,5 20 (1.3) 1.50 (1,11) 1 230 240 12.4 12.6 1 /r in. GFP 34.0 (864) 24 (610) 41 (1 9) 100
PF300511 ' 30 (1.9) 0.50 (0.37) 1 115 120 11,8 11.8 1 14 in. GFP 21 3 (541) 20 (508) 28 (13) 300
PF300512 ' 30 (1 ,9) 0.50 (0,34 1 230 240 6.2 6.2 1I/ain.GFP 21.3 (541) 20 (508) 25 (11) 300
PF300712 e 30 (1 .9) 0.75 CI.56) 1 230 240 8.5 8.5 1 i/a in. GFP 24,8 (630) 21 (533) 29 (13) 300
PF301012 4,s 30 (1.9) 1.00 (0.75) 1 230 240 10.4 10,4 1 /r in. GFP 27.0 (686) 22(559) 32 (15) 100
PF3015124'5 30(1.9) 1.50(1,11) 1 230 240 12,6 12.6 1 /r in. GFP 32.8 833) 24 (610) 40 (18) 100
PF302012 5,6,' 30 (1 ,9) 2.00 (1.49) 1 230 240 11.0 11.0 1 /+ in. SS 35.5 (902) 26 (660)44(201 100
pF303012 5,6'7,8 30 (1.9) 3.00 (2.23) 1 230 240 16.8 1 6.8 1 i4 in. SS 44.5 (1 130) 33 (838) 54 (24) 100
PF305012 5,6'7,8 30 (1.9) 5.00 (3.73) 1 230 240 25,6 25.8 1 1/+ in, SS 66.5 (1689) 53 (1346) 82(371 100
PF500511 e 50 (3.2) 0.50 (0.34 1 1 15 120 12j 12j 2 in. SS 20.3 (516)24 (610) 27 (14 300
PF500512 e 50 (3.2) 0,50 (0 34 1 230 240 6.2 6.2 2 in. SS 20.3 (516) 24 (610) 27 (14 300
PF5oo712 s 50 (3.2) 0,75 (0 s6) 1 230 240 8,5 8.5 2 in. SS 23.7 (604 25 (635) 31 (14) 300
PF501012 s 50 (3.2) 1,00 (0,75) 1 230 240 10.1 10.1 2 in. SS 27,0 (686)26 (660) 35 (16) 1oo
PF5015124 50(3.2) 1,50(1.11) 1 230 240 12,5 12.6 2 in. SS 32.5 (826) 30 (762) 41 (19) 100
pF503012 45,7'8 50 (3.2) 3.00 (2,23) 1 230 240 17 .7 17.7 2 in. SS 43,0 (1092) 37 (940) 55 (20 100
PF505012 16,7,8 50 (3,2) 5.00 (3,73) 1 230 240 26.2 26.4 2 in, SS 65,4 (1661)55 (1394 64 (2e) 100
PF751012 ' 75 V.n 1.00 (0 70 1 230 240 9.9 10,0 2 in. SS 27.0 (686) 27 (686) 34 (15) 100
PFt51512 75 Q.n 1 ,50 (1 11) 1 230 240 12.1 12.3 2 in, SS 33,4 (848) 30 f62) 44 Qq 100
ab1ut fiftings to connfit hose and valve assemblies to metic-sized piping.
nore informaton.
3 Weight includes aft,n and 10-ft (3-n) c1rd.
4 High-pre$ure discharye assenbly tequited.
5 Do n1t use canlock option (Q) on discharge assenbly.
6 Custun discharye assembly rcquied fu hese punps. Contact orenco.
7 Capacitor pack (sold sepanaly 0r insblad in a custom nntnl pane\ required for ffiis pump. Contact 0renco.
8 Taque l}cks are avaikble for all punps and are supplied with 3-hp and s-hp punps
I ClickTightrMcompatible.
IfiTI-PU.PF.l
Rev. 10 O lll/21
Pago 2 of 4
orencoSystemso r 800-348-9843 r +1 541-459-4449 . wwu0renco,com
Technicar rlata orencoSYSTEMS
Materials of Gonstruction
Discharge Glass{illed polypropylene 0r stainless steel
Dischargebearing Engineeredbermoplastic (PEEr0
Diffusers Glass{illed PPO (Noryl GFN3)
lmpellers Celcon@ acetal copolymer on 10-,20-, and 30-gpm models; 50-gpm impellers are Noryl GFN3
lntake screen Polypropylene
Suction connection Shinless steel
Drive shaft 7/16-in. hexagonal stainless steel, 300 series
Coupling Sintered stainless steel, 300 series
Shell Shinless steel, 300 series
Motor Franklin motor exterior cgnstructed of stainless steel. Motor filled with deionized water and propylene glycol for constant lubrication, Hermetically
sealed motor housing ensures moisture{ree windings. All thrust absorbed by Kingsbury-type thrust bearing. Rated for continuous duty. Single-
phase mobrs are equipped with surge anestors for added security, Single-phase motons through 1.5 hp (1.1 1 k!V) have buift-in thermal over-
load protection, which trips a1203-221" F (95-1 05' C).
Using a Pump Gurve
A pump curue helps you determine the best pump for your system, Pump curves show the relationship between flow and pressure (total dynamic
head or "TDH"), providing a graphical representation of a pump's optimal performance range. Pumps perform best at their nominal flow rate. These
graphs show optimal pump operation ranges with a solid line and show flow rates outside of these ranges with a dashed line, For the most accurate
pump specification, use 0renco's PumgSelect* software.
Pump Curves
400
350
ar
-e)
.5 300
fl zso
!
E*oti
F 150
\I rooG
.a
50
500
400
a* sso
t rooslH
E 250
|Eot zoo
E rso\t
E loo
.a
PFl0 Series,50 Hz,0.5 - 1.0
PFr010
II
PFl
\
\
..1
Flow in gallons per minute (gpm)
024681012141618
PF2ll Series,60 H2,0.5 - 1,5 hp
PF2010
0510152025303540
Flow in gallons per ninute (gpn)
50
0
I{TD.PU-PF.l
R6v, 10 O 0ll21
Pago 3 of tl
orenco Sysbmso r SlXl-348-984i1 r +1 541-t159-4449 ' unilu,.0rcnc0.G0m
lD PRll Series,60 H2,0.5 - 5.0 hp
F f,
:l
F =
PF:t0t5
L f
s
Pump Curues, cont.
5r015202530354045
Flow in gallons per minute (gpn)
10 20 30 40 50 60 70 80 90 100
Flow in gallons per minute (gpn)
PF50 Series,60 H2,0.5 - 5.0 hp
mt5
trr
--'
0102030405060708090
Flow in gallons per minate (gpn)
0
450
400
o€ rso
E soosth
E 250Got zoo'=tr
E rso\E-
$ roo
.a
50
900
800
qr
$ zoo
F ooo\Il\
E*o€
.cr 400
(!I 300
E-
.g 200
.Q
90
ae80
s70
t60EGe50(t'F 40
G
s30
E20
l0
00
t00
PEl5 Series,6{l Hz,1.0 - 1.5 hp
ilm-Pu-PF-l
Rov. 10 O 01/21
Page 4 of 4
Orenco Slstemso . 800-348-9&43 r +1 541 -459-4449 . www,orenco,com
I E
Distributing Valves
Applications
Automalic Distributing Valve Assemlrlies are used to pressurize mulliple zone
distribution systems including lextile {ilters, sand filiers and drainfields.
Top View
Coupling
Distributing valve
Union
Clear pipe
Ball valve
Elbow
Side View
Elbows
&oftam View
General
Orenco's Automatic Distributing Valve Assemblies are mechanically operated
and sequentially redirect the pump's flolv to mulliple zones or cells in a dis-
tribution fielrj, Valve actuation is accomplished by a combinalion of pressure
and flow. They allow the use of smaller horsepower pumps on large sand
filters and drainfields. For example, a large community drainfield requiring
300 gpm {1B.90Usec) can use a slxJine valve assembly to reduce the
pump flow rale requiremenl to only 50 gpm (3;.14Usec),
Orenca only warrants Automatic Distributing Valves when used in conjunc-
tion with High-Head Effluent Pumps with Biotube@ pump vaults lo provide
pres$ure and flow requirements, and t0 prevent debris from fouling valve
operation, An inlet ball valve, a section of clear pipe, and a union for each
oullel are provided for a complete assembly that is easy tn maintain and
monitor ldeal valve location is at the high point in the system, Refer to
Automatic Distributing Valve Assemblies (NTP-VA-1) for more infonration,
$tandard Models
u M02A,V4403A, V 4404A,V4605A, V4606A, V6402A, V6403A, V6404A,
v6605A, V6606A.
Product Code Diagram
v A
T***,,0,,
Discharso connect:on! lfi slalleo:
0? -- 2 connections
C3- = 3coruiection$
04 = 4 coftfl]ctions'
05 = Sconneclions'
06 = 0 conneciions
A'{aikble discilargs csr$€ctiofis:
4 * 4 awilableconnsclkrls
€ = 6availabloconnections.
lnlet/outlet size, in, {mr'l):4 = 125;&)
6,= 1.50{40}
Dislribuiinc valle
Materials of Canstruction
All Fittings Soh. 40 PVC per ASTM srrecification
Unions Sch. 80 PVC per ASTM spocificalion
Ball Valve Sch. 40 PVC per ASTM specification
Clear Pipe Sch.40 PVC perASTM specilication
grenco $ystems@ ;nc,,814 Ainrvay Ave,, $utherlin,0R S?479 USA . 800-348-98ilit . 541-459-4449 . www'orenco'com llTo'sF-vA-l
gev. 2.0, O 03fl7
Page I Dlz
Specifications
Model lnlet Size,in. (mm) Outlets Size, in, (mm) Flow Range, spm {Usec) Max Head,ft {m) Min. Enclosure*
u44024 1.25 6a 1.25 (32)10 - 40 (0.63 - 2.52)170 (51 .816)u81217
v4403A 1.25 (34 1.25 (32)10 - 40 (0.63 - 2.52)170 (51 .816)w1217
u44A4A 1.25t32}1.25(32)10 - 40 (0.63 - 2.52)170 (51 .816)u81217
v46054 1.25 (32)1.25$A 10 - 40 (0.63 - 2.52)170 (51 .816)RR241 I
v4606A 1.25 (32)1.25 (32)10 - 40 (0,63 - 2.52)170 (51 .81 RR241 I
v6402A 1,50 (38)1.50 {38}15 - 100 (0.95 - 6,31)345 (105,16)RR241 8
v6403A 1.50 (38)1.50 (38)15 * 100 (0,s5 - 6,31)345 (105.16)RR241 8
v6404A 1.50 (38)1.50 (38)15 - 100 (0.95 - 6.31)345 (105.16)RR241 8
v66054 1.50 (38)1.50 (38)15 - 100 (0.95 - 6.31)345 (105.16)RR241 I
v6606A 1.50 (38)1.50 (38)15 - r00 (0.95 - 6.31)345 (105,16)RR241 8
* When using an enclosed basin, choose the next laqer-sized diameter.
Table 1. Automatic Distributing Valve Assembly Headloss Equations
ModelSeries Equation Ranoe. oom lUsec)
v4400q Hr =0.085xQ1s 10 - 40 (0.63 - 2.52)
V46MA Hr =0.085xOr's 10 - 25 0.63 - 1.54
v64004 H' = 9.9645x Pz * 3.5x (1 - e{ffi$15 - 70 p.95-4.42)
\66004 H' = 0,66149x6z * 5.5x (l - e{1$15 - 70 (0.95-4,44
.ct
E
6)6a
ctt
o
o6o
'Eldo,
35
30
25
2A
15
10
5
0
05101520253035
Flow (gpm)
40 45 50 55 60 65 70
v66004
-//
-/v6400A
v4600A -/
v4400Al-.r'at-
-4 ,J,'"
-/
{t-
-4 a?-
/4
=
.F 14t .--
.4 tJ 7
l$It-SF-VA-i
Bov,2.0, O lts/l7
PagsZsl2
orenco Sysbmso 1nc,,814 Alnf,ay Ave., Sutherlin,0R 97479 USA . 800-348-9&{3 r 541-459-4449 . trvwworenco'com
Pump Selection for a Pressurized System - Single Family Residence Project
Lookout Mountain
Parameters
Discharge Assembly Size
Transport Length Before Valve
Transport Pipe Class
Transport Line Size
Distributing Valve Model
Transport Length After Valve
Transport Pipe Class
Transport Pipe Size
Max Elevation Lift
Manifold Length
Manifold Pipe Class
Manifold Pipe Size
Number of Laterals per Cell
Lateral Length
Lateral Pipe Class
Lateral Pipe Size
Orifice Size
Orifice Spacing
Residual Head
Flow Meter
'Add-on' Friction Losses
inches 160
140
120
inches
feet 100
80
60
Calculations
1.50
10
40
1.50
6404
12
40
1.50
5
0
40
'1.50
4
75
40
'1.50
118
4
5
None
0
feet
inches
feet
inches
feet
feet
inches
inches
feet
feet
inches
feet
oolr
o
Ea!oI
.9
ts(qc
tr
(q
o
Minimum Flow Rate per Orifice
Number o! Orifices per Zone
Toial Flow Rate per Zone
Number of Laterals per Zone
o/o Flow Differential l sUlast Orifice
Transport Velocity Before Valve
Transport Velocity After Valve
Frictional Head Losses
0.43
19
8.2
1
1.2
1.3
1.3
gpm
gpm
o/o
fps
fps
40
20
Loss through Discharge
Loss in Transport Before Valve
Loss through Valve
Loss in Transport after Valve
Loss in Manifold
Loss in Laterals
Loss through Flowmeter
'Add-on' Friction Losses
Pipe Volumes
0.2
0.0
1.7
0.1
0.0
0.1
0.0
0.0
fqet
feet
feet
feet
feet
feet
feet
feet
0 0
PumpData
't0 20 30 40 50
Net Discharge (gpm)
60 70 80
PF5005 High Head Effluent PumP
50 GPM, 1/2HP
1151230V 1A 60H2,2001230V 3g 60HzVol ofTransport Line Before Valve 1.1
Vol of Transport Line After Valve 1.3
Vol of Manifold 0.0
Vol of Laterals per Zone 7.9
Total Vol Before Valve 1.1
Total VolAftervalve 9.2
gals
gals
gals
gals
gals
gals
Ir
I
j
System Curve:-
Pump Curve: *
Pump Optimal Range:-
1\
Operating Point: V
o
Design Point:
::
8.2 gpm
tguirements