Products
Systems
Controls
PERC-RITE® DRIP DISPERSAL DESIGN INFO
TABLE OF CONTENTS
1.  PERC-RITE® SYSTEM COMPONENTS
2.  PERC-RITE® DRIP DISPERSAL DESIGN
3.  ASD 15 (STANDARD) ZONE DETAIL TABLE
4.  LIFT AND DISTANCE TABLE INSTRUCTIONS
5.  QM ZONE DETAIL TABLE
6.  LIFT & DISTANCE TABLE (12 GPM)
7.  HYDRAULIC PROFILE
8.  PERC-RITE® DESIGNERS' WORKSHEET
PERC-RITE® SYSTEM COMPONENTS
  1. The PERC-RITE® DRIP SYSTEM CONTROLLER is a "state of the art" control panel, activated by level sensing devices (standard mechanical differential float switches) located in a dosing tank downstream from the pretreatment process or processes. When activated by the rising level of effluent in the dosing tank, the controller will enable the disposal cycle. The system controller on a time clock basis will pump the effluent through the filter module and then to final drip dispersal.


  2. FILTER MODULE - Disc filters, automatic control valves, solenoid activated diaphragm valves, the flow meter are assembled in a heated enclosure and provided with a labeled wire harness for easy connection the the control panel.


  3. PUMP SYSTEM - The pump, Cool GuideTM and float switches for level indication are provided for installation into the pump tank. The pump is a turbine 15 gpm pump and will be suitable for most residential installation. Reference lift and run table for pumping limits.


  4. DRIPPER TUBING - The dripper tubing is pressure compensating dripperline for wastewater. The tubing delivers a nominal 0.65 gallons per hour (+/- 5% flow rate from 7 to 60 psi). The tubing functions as a turbulent flow emitter between 0 and 7 psi, ensuring that the nominal design flow is not exceeded at system start-up. The tubing is polyethylene with a 120 psi pressure rating.


  5. TOP FEED MANIFOLD SYSTEM - The Top Feed Manifolds are located at the highest point in the drip zone and provided with air release valves to prevent drain down of upper laterals in the zone to lower laterals in the zone, thus preventing saturation of the lower laterals after the pump shuts off. The system provides for the fastest possible pressurization of the zone and the most efficient method of providing drain down control. If the site is flat, Top Feed Manifolds may not be required.
    Patent No. 5,984,574.


  6. SPECIAL FIELD MATERIALS - All special drip fittings and equipment are supplied by American Manufacturing Company, Inc. including the tubing insert fittings, connectors, flex tube and non- schedule 40 PVC standard fittings.


  7. STANDARD FIELD MATERIALS - All tanks, wire, standard pipe and fittings are provided by the contractor at the local site. The 1" supply and return pipes, the 1/2" pipe for installation between the top feed manifold system and the laterals and other misc. PVC pipe are to be purchased locally.

OPERATION

The system control panel is equipped with four float switches and controls the timed doses to be discharged. The water level must be high enough to overcome the "Redundant Off" (Bottom) float in order for the pump to run. When the water level rises high enough to overcome the "Dose Enable" (second) float and the timer is in dose enable mode the cycle will initiate. The pump will activate and automatically backflush the disc filters then dose the lead zone. The pump will continue to run for the length of time as set on the pump run timer to provide a complete dose. The system will remain off until the preprogrammed off timer enters a new cycle enable mode, at which time the control will activate another cycle and dose the new lead zone (as long as the "Dose Enable" float is still up). This process will continue until the water level drops below the "Dose Enable" float and the pump run timer has timed out. Each zone will automatically receive a field flush each 50 cycles to clean the drip tubing.

The control system is equipped with a peak enable circuit to manage peak flows and excess water use event. If the water level rises enough to overcome the “peak enable” (third) float and the peak enable selector switch is on, the system will be cycled at the peak rate. The system will continue to cycle at an increased rate until the peak enable float is deactivated at which time the system will resume the normal dosing cycle.

In the event the water level continues to rise enough to overcome the “High Level” (fourth) float, the audio/visual alarm will be activated until silenced by pressing the Test-Normal-Silence switch to the silence position.

[Back to TOP]

PERC-RITE® DRIP DISPERSAL DESIGN

This information and the tables are exerpts from the "Perc-Rite® Drip System Designer's Guide" for the non-engineer designer. Procedures have been developed to size, layout and design a Perc-Rite® Drip system using tables instead of performing calculations. When advanced system design is required the designer must reference the design manual located on our web site and complete a detailed calculation sheet to determine suitability. The Perc-Rite® Drip System operates all components automatically including backflushing filters, field flushing, and timed dosing of drip tubing. Only those components which are special to the drip technology are purchased from American, all other items are purchased locally for better economy.

TYPICAL LAYOUT

[Back to TOP]

STANDARD ZONE DETAIL TABLE
ASD 15 PERC-RITE ZONE DETAIL TABLE: SEPTIC OR SECONDARY
15 GPM AUTOMATIC DRIP SYSTEMS: 24" EMITTER SPACING
RUN LGTH
#RUN
50'
ZD    LF
75'
ZD    LF
100'
ZD    LF
125'
ZD    LF
150'
ZD    LF
200'
ZD    LF
225'
ZD    LF
250'
ZD    LF
300'
ZD    LF
4        Z221   1200
5         
6

     Z231   1200

Z231   1350

Z231   1500

Z231   1800
Z321   1800
7         
8    Z222   1200Z241   1600Z241   1800Z241   2000Z241   2400
9     Z331   1800Z331   2025Z331   2250Z331   2700
10   Z251   1250Z251   1500Z251   2000Z251   2250  
11         
12

  Z223   1200
Z232   1200
Z232   1500

Z232   1800
Z322   1800
Z341   2400
Z431   2400
Z341   2700
Z431   2700
Z341   3000
Z431   3000
Z341   3600
Z431   3600
13         
14  Z271   1400      
15   Z351   1875Z351   2250Z351   3000Z351   3375  
16

 Z224   1200

Z242   1600

Z242   2000

Z242   2400
Z422   2400
Z441   3200

Z441   3600

Z441   4000

Z441   4800

17         
18

 Z233   1350

Z233   1800
Z323   1800
Z332   2250

Z332   2700

    
19         
20 Z252   1500Z252   2000Z451   2500Z451   3000Z451   4000Z451   4500  
21  Z371   2100      
22         
23         
24


Z226   1200


Z234   1800
Z324   1800

Z243   2400
Z342   2400
Z423   2400
Z342   3000
Z432   3000

Z342   3600
Z432   3600

    
25         
26         
27 Z333   2025Z333   2700      
28Z272   1400 Z471   2800      
29         
30

Z235   1500

Z253   2250
Z352   2250
Z352   3000

      
31         
32

Z244   1600

Z244   2400
Z424   2400
Z442   3200

Z442   4000

Z442   4800

    
33    
DOSING & FLOW TABLE (GPM)

LF/
ZONE
GPM
DOSE
RATE
FF
NO.
LATS
FF
NO.
LATS
FF
NO.
LATS
FF
NO.
LATS
FF
NO.
LATS
FF
NO.
LATS
  234567
6003.36.58.19.711.312.914.5
6503.56.78.39.911.513.114.7
7003.87.08.610.211.813.415.0
7504.17.38.910.512.113.715.3
8004.37.59.110.712.313.915.5
8504.67.89.411.012.614.215.8
9004.98.19.711.312.914.516.1
9505.18.39.911.513.114.716.3
10005.48.610.211.813.415.016.6
10505.78.910.512.113.715.316.9
11006.09.210.812.414.015.617.2
11506.29.411.012.614.215.817.4
12006.59.711.312.914.516.117.7
34    
35    
36

Z236   1800
Z326   1800
Z334   2700
Z334   2700
Z343   3600
Z433   3600
 
37    
38    
39    
40Z254   2000Z452   3000Z452   4000 
41    
42Z372   2100   
43    
44    
45Z335   225Z353   3375  
46    
47    
48

Z246   2400
Z344   2400
Z344   3600
Z434   3600
Z443   4800

 

[Back to TOP]

LIFT & DISTANCE TABLE INSTRUCTIONS
  1. The vertical lift is the elevation difference between the "off float" and the highest point in any zone.
  2. The diameter of the pipe from the pump tank to the hydraulic unit is 1-1/2" minimum.
  3. All supply and return pipes are 1".
  4. The flush return pipe from the hydraulic unit to the pretreatment tank is 1-1/2" gravity.
  5. The maximum distance from the pump tank to the hydraulic unit is 30'.
  6. The tables may be used with the standard zone detail configuration only. A calculation sheet must be filled out for any other configuration.
  7. Top feed manifolds must be used when any discernible slope is encountered.
Maximum Static Lift ("Off Level Float" to Drip Field)
        
 Supply/      
1Return Line2-Lat3-Lat4-Lat5-Lat6-Lat7-Lat
 (feet)300'300'300'240'165'100'
2       
3100988875747977
4150968469667068
5200948163586159
6250927757515249
7300907350434440
8350887044353531
9400866638272621
104508463321917 
1150082592612  
12550805520   
13600785214   
1465076488   
1570074452   
167507241    
178007037    
188506834    
199006630    
209506427    
2110006223    
ZONE DETAIL NUMBERING SYSTEM

Each zone is designated by a "Z" indicating it is a Zone Detail Designation followed by three groups of numbers, the first is the number of zones, the second is the number of laterals per zone, the third is the runs per lateral.

_______
Z = Zone
_______
# Zones
_______
# Laterals
_______
# Runs/Lat
EXAMPLE 1
___Z___
Z = Zone
___3___
# Zones
___3___
# Laterals
___3___
# Runs/Lat

This example shows a three zone detail with three laterals per zone and three runs per lateral.

ZONE DETAIL SELECTION PROCEDURE

Reference the site plan layout to determine the width across contour of the delineated area. From the site and soils evaluation determine the total amount of tubing required. The area divided by two is the total linear feet of tubing required. The total linear feet of tubing required. The total linear feet of tubing required. The total linear feet of tubing divided by the length across contour equals the minimum number of runs.
The total number of linear feet of tubing and runs will typically be more than the minimum since the preferred layout for flushing the supply and return lines will typically result in more than the minimum tubing. The preferred layout is the next largest zone detail. Increasing the number of runs in order to install a standard zone configuration is encouraged. This provides an additional safety factor to the tubing interface loading rate. Use the following step by step procedure to select a zone detail.

[Back to TOP]

QM ZONE DETAIL TABLE
QM PERC-RITE ZONE DETAIL TABLE: SECONDARY ONLY
12 GPM SEMI-AUTOMATIC DRIP SYSTEMS: 24" EMITTER SPACING
RUN LGTH
#RUN
50'
ZD    LF
75'
ZD    LF
100'
ZD    LF
125'
ZD    LF
150'
ZD    LF
200'
ZD    LF
225'
ZD    LF
250'
ZD    LF
300'
ZD    LF
2
          Z121   400 Z121   450 Z121   500 Z121   600
3
        Z131   450 Z131   600 Z131   675 Z131   750 Z131   900
4
   
Z122   400
Z141   400
Z122   500
Z141   500
Z122   600
Z141   600
Z141   800
Z221   800
Z141   900
Z221   900
Z141   1000
Z221   1000
Z221   1200
5
   
Z151   500
Z151   625
Z151   750
       
6
 
Z123   450
Z132   450
Z123   600
Z132   600
Z132   750
Z132   900
Z231   900
Z231   1200
Z231   1350
Z231   1500
Z231   1800
7
                 
8
Z124   400
Z142   400
Z124   600
Z142   600
Z142   800
Z222   800
Z241   800
Z142   1000
Z222   1000
Z241   1000
Z222   1200
Z241   1200
Z241   1600
Z241   1800
Z241   2000
 
9
Z133   450
Z133   675
Z133   900
           
10

Z125   500
Z152   500
Z152   750
Z251   1000
Z251   1250
Z251   1500
       
11
                 
12
Z126   600
Z134   600
Z143   600
Z134   900
Z143   900
Z223   900
Z232   900
Z223   1200
Z232   1200
Z232   1500
Z232   1800
       
13
                 
14
                 
15
Z135   750
Z153   750
               
16
Z144   800
Z224   800
Z242   800
Z224   1200
Z242   1200
Z242   1600
Z242   2000
QM DOSING & FF FLOW TABLE (GPM)

LF/
ZONE
GPM
DOSE
RATE
FF
NO.
LATS
FF
NO.
LATS
FF
NO.
LATS
FF
NO.
LATS
    2 3 4 5
400 2.2 5.4 7.0 8.6 10.2
450 2.4 5.6 7.2 8.8 10.4
500 2.7 5.9 7.5 9.1 10.7
550 3.0 6.2 7.8 9.4 11.0
600 3.3 6.5 8.1 9.7 11.3
625 3.4 6.6 8.2 9.8 11.4
650 3.5 6.7 8.3 9.9 11.5
675 3.7 6.9 8.5 10.1 11.7
700 3.8 7.0 8.6 10.2 11.8
750 4.1 7.3 8.9 10.5 12.1
800 4.3 7.5 9.1 10.7 12.3
850 4.6 7.8 9.4 11.0 12.6
900 4.9 8.1 9.7 11.3 12.9
950 5.1 8.3 9.9 11.5 13.1
1000 5.4 8.6 10.2 11.8 13.4
17
       
18
Z136   900
Z233   900
Z233   1350
Z233   1800
 
19
       
20
Z145   1000
Z225   1000
Z252   1000
Z252   1500
   
22
       
24
Z226   1200
Z234   1200
Z243   1200
Z234   1800
Z243   1800
   
26
       
28
       
30
Z235   1500
Z253   1500
     
32
Z244   1600
     
34
       
36
Z236   1800
     
38
       
40
Z245   2000
     

[Back to TOP]

LIFT & DISTANCE TABLE (12 GPM)
PERC-RITE LIFT & DISTANCE TABLE
12 GPM SEMI-AUTOMATIC DRIP SYSTEMS: 24" EMITTER SPACING

LIFT & DISTANCE TABLE QUALIFICATIONS

  1. The vertical lift is the elevation difference between the "Off Level Float" and the highest point in any drip zone.
  2. The supply/return line column is the distance from the filter to the farthest drip zone.
  3. The diameter of the pipe from the pump tank to the optional filter unit is 1-1/2" minimum.
  4. All zone supply and return pipes are 1".
  5. The flush return pipe from the filter box to the pretreatment tank is 1-1/2" gravity.
  6. The maximum distance from the pump tank to the optional filter valve box is 30' and the vertical lift from the pump chamber to the optional filter valve box is 8'.
  7. These tables may be used with the standard zone detail configuration only. A calculation sheet (not included herein) must be filled out for any other configuration.
  8. Top feed manifolds must be used when any discernible slope is encountered.
  9. Remote zone valves are needed when pumping downhill from the filter.
  10. Return pressure assembly is needed when pumping uphill from the optional valve box.

LIFT & DISTANCE TABLE
12 GPM SEMI-AUTOMATIC PERC-RITE DRIP SYSTEMS: 24" EMITTER SPACING
Maximum Static Lift ("Off Level Float" to Drip Field)

Table A:
STANDARD QM LIFT & DISTANCE TABLE
  Supply/        
1 Return Line 2-Lat 3-Lat 4-Lat 5-Lat
  (feet) 300' 300' 250' 150'
2          
3 100 100 83 78 86
4 150 98 80 73 80
5 200 96 76 68 74
6 250 94 72 62 68
7 300 92 69 57 63
8 350 90 65 52 57
9 400 88 62 46 51
10 450 86 58 41 45
11 500 84 54 36 39
12 550 82 51 30  
13 600 80 57 25  
14 650 78 44 20  
15 700 76 40 15  
16 750 74 36 9  
17 800 72 33 Note:
Use Table B
when using
HydroSeq
Valve
18 850 70 29
19 900 68 26
20 950 66 22
21 1000 64 18
Table B:
QM w/ HYDRO SEZ DISTRIBUTING VALVE
  Supply/        
1 Return Line 2-Lat 3-Lat 4-Lat 5-Lat
  (feet) 300' 300' 250' 150'
2          
3 100 61 61 61 61
4 150 58 58 58 58
5 200 56 56 56 56
6 250 53 53 53 53
7 300 50 50 50 50
8 350 47 47 47 47
9 400 44 44 44 44
10 450 42 42 36 42
11 500 39 39 31 39
12 550 36 36 25  
13 600 33 33 20  
14 650 30 30 15  
15 700 28 28 10  
16 750 25 25 4  
17 800 22 22 Note:
Use this table
when using
HydroSeq
Valve
18 850 19 19
19 900 16 16
20 950 14 14
21 1000 11 11

[Back to TOP]

HYDRAULIC PROFILE
Hydraulic Profile & Typical Drip Details

[Back to TOP]

PERC-RITE® DESIGNERS' WORKSHEET
Dispersal system design worksheet for residential systems.
 
YN
(  )(  )
(  )(  )
 
Are supply and return pipes 1"?
Is the lift to the HU < 8' and the run to the HU < 30' with 1-1/2" pipe?
1
Anaerobic(  )
Aerobic(  )
Effluent Quality
2
______# of Bedrooms
Number of Bedrooms
3
______GPD
Design quantity of wastewater to disperse. (120 GPD per bedroom)
4
______Contour Run Length
Enter the tubing run length. If run length is not on table, use the actual run length. Example: 85 ft.
5
______Supply LF
Length of supply line between hydraulic unit and farthest zone.
6
______Lift ft. Trench
Vertical lift from off level in the pump chamber and highest zone elevation.
7
______Area GPD/ft2 per code
Area loading rate required to treat and disperse wastewater. (See Loading Rate Chart)
8
______Area Calculation (ft2)
Total install area needed to disperse wastewater. (line 3 / line 7)
9
______Total LF Tubing
Required total linear feet of tubing to disperse wastewater. (line 8 / 2)
10a
______Calculated Runs
Number of runs (line 9 / line 4)
10b
______Min. # Runs
Round up to next whole number to determine Min. # Runs. (Reference Zone Detail Table)
11
______Zone Detail
Using Zone Detail Table, select zone detail from column with next higher Contour Run Length (line 4) and with equal or greater # of Runs (line 10b).
12
______Max. Lift Allowed
Determine from Lift & Distance Table, cross Supply LF equal to line 5 with the appropriate number of laterals.
13
______LF Provided
Total linear feet of tubing provided to disperse wastewater. (# of zones x laters per zone x runs per lateral x Contour Run Length)
14
______LF/Zone
Total linear feet of tubing per zone. (LF Provided / # of zones)
15
Will zone flush?
YN
(  )(  )
If #12 is greater than #6, the system will flush.
Reference Lift & Distance Table for pump capacity determined by the length of run to the farthest field and the number of laterals.
(For 1" supply and return only)

[Back to TOP]


AMERICAN MANUFACTURING COMPANY, INC.
Last revised: Mar-1-2011
Comments to: info@americanonsite.com
Copyright © American Manufacturing Company, Inc., 2000

HOME | ABOUT | ORDER INFO | PRODUCTS | DRIP SYSTEMS | CONTROLS | CONTACT | SITE MAP