Pumps

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Tasks

  • Agua Caliente poster design for presentations.
  • Earthquake research/analysis.
  • Storm report check. What is the intensity of a 100 year
  • Add reimbursement information from old wiki into new wiki. Reimbursement forms

Questions

  • When do the members of dam 3 put in their ram pumps?
  • When do the member of dam 3 put in the stop logs?
  • What flow rate measurement did Don Gregorio give for the spring? (60L/s?) How did he make the measurement?
  • Are there designs/schematics available for any of the dams?

History

Coming from each dam are a series of ram pumps to move the water from the spring to the fields. This enables community to farm throughout the dry season which stimulates jobs and the economy. The pump system was created by a group of farmers based on a diagram in an encyclopedia. The schematic and design plans are not available for replication. Don Guyo's family owns the spring itself which is currently servicing 60-70 agricultural families. Pumps can be recreated by the farmers in a ten day period but overall may last over fifteen years.

Brief Project Information: The ram pump system itself is nearly 40 years old.  There are 4 dams that each provide pressure to about 15 pumps: one pump per two families.  The dams are all made of concrete and are anywhere from 12 to 16 ft tall on the downstream side.  Dams 1 and 3 (labeled from the spring to downstream) each have a 4ft wide spillway.  During the dry season these spillways are blocked with wooden planks and canvas to contain the reservoir.  The reservoir drains through metal pipes that connect to the ram pump units which then ratchet the water up the hill and to the agricultural fields. There is currently no way for the farmers to store any of the water from the ram pumps and use it as it comes out of the irrigation lines.  The lines themselves are 1 ¼” black rubber hosing and have been a major factor in limiting the system's maximum elevation for irrigation.  To date, the community has designed, built, and funded the entire system. --From Kevin's email

Goals

  • Design a less expensive and/or more effective pump using the methods and materials already available to the Co-op
  • Design a system to provide irrigation water to a section of farmlands not currently supplied.

Questions to Be Answered

  1. What size is the outlet check valve and pipe -1/2 inch, 3/4 inch or 1 inch?
  2. What is the exact material the hoses are made of and what is the diameter of the hoses?
  3. Approximately how much would the community be willing to spend to improve/ fix the pump system? Not yet discussed
  4. Are there any materials they already have that could be potentially used in the pump system?

.

Deliverables

  • Jim Ruzika (jim@mainlineconsulting.net) wanted to know the following
    • What type of sprinklers are they using now
    • What are they irrigating and approximate layout
    • How far from source (pump)
    • Flow rate (psi, gpm)
  • Elizabeth Howland will need documentation of tweak that was done to the control switch at the school. This will ensure that members can undo the change, know what changed, and ensure that people are operating the system safely.
    • The control system was not working correctly. Not sure why. Potentially poor wire connections, float failures, or just too much resistance through the floats. Since the system, was being operated in an unsafe manner, the control system was disengaged so that the pump can be turned on without needing to remove any panels.

System Specs

Any details about the system are to be recorded here.

Spring

  • The spring seeps up into the reservoir of the first dam and so a direct measurement will not be possible.
  • Approximately 60 liters per second in-flow. Per Don Gregorio. Do not know what time of year this was measured.

Dams

Distances: dam 1 -> 260m -> dam 2 -> 280m -> dam 3 -> 441m -> dam 4 -> 427m -> dam 5

Dam 1

Age: 22 years

Has a base to prevent piping.

Dam 2

Age: 12 years

Dam 3

  • Dimensions: 17ft tall and 40ft wide

Age: 3 years

Rolando has his pump here

Dam 4

Age: 8 years

Dam 5

Age: ?4-5 years

  • Broke in 2010.
  • 1000 cubic feet per minute measured at the spillway. According to Isaac.

Representative: Roberto Quinac. He is also the Agua Caliente COCODE president.

Misc

  • Possible solutions: grout injection, steel sheet piles,
  • Five dams have been constructed.
  • The Co-op is around 6 years old. The ram pump system itself is nearly 14 years old. There are 4 dams that each provide pressure to about 15 pumps: one pump per two families. The dams are all made of concrete and are anywhere from 12 to 16 ft tall on the downstream side. Dams 1 and 3 (labeled from the spring to downstream) each have a 4ft wide spillway. During the dry season these spillways are blocked with wooden planks and canvas to contain the reservoir. The reservoir drains through metal pipes that connect to the ram pump units which then ratchet the water up the hill and to the agricultural fields. There is currently no way for the farmers to store any of the water from the ram pumps and use it as it comes out of the irrigation lines. The lines themselves are 1 ¼” black rubber hosing and have been a major factor in limiting the system's maximum elevation for irrigation. To date, the community has designed, built, and funded the entire system.

Pumps

  • Dam5Ram3: Dimensioned Photo
  • Dam5Ram1: Dimensioned Photo
  • Dam4Ram3: Dimensioned Photo
  • Proposed Procedure: Procedure developed prior to reaching Agua Caliente for measuring ram pumps
  • Pump Field Notes: Measurements taken of pumps during the March 2012 assessment trip.
  • Labeled Pump: Sketch of ram pumps with labelled parts. Click here for the original as drawn by Don Gregorio March 2012.
  • Cost = ~7500Q per pump or is it 15KQ per pump?
  • Time to manufacture = ~3-4 days. This includes welding at a shop and on-site installation
  • Pumps are usually run non-stop out of the rainy season unless maintenance is required. This may only apply February to May.
  • All ram pumps except for the ones at dam 1 are removed during the rainy season (May to September).
  • Outlet check valve is 1-in, but one pump has 2-in
  • Have a filter. Tube with drilled holes. Large diameter holes and located in drive pipe.

Irrigation

  • Note that a "cuerda" is defined as a 33 meter sqaure or about 1089 meters squared.
  • The principle type of sprinkler used is of the "butterfly" variety. This refers to the kind that flap as they spin.
  • There are a few farmers that use drip irrigation. We currently only know of the system used by Don Gregorio (Dam 1 and 4?) and Juan Gabriel (Dam 3).
  • PVC for sprinklers is 3/4" inch non-threaded
  • Hoses are 1-inch heavy duty "polyducto"

List of farmers who are members of APROMAC, but have no ram pump. Most of these people are near potential tank locations one and two.

  1. Patricio Gabriel
  2. Cornelio Gabriel
  3. Julian Chali
  4. Miguel Chali
  5. Bonifacio Roguel
  6. Pedro Tarton
  7. Juan Jutzuy
  8. Jaturnino Jutzuy
  9. Getrudis Jutzuy
  10. Beniano Jutzuy
  11. Roberto Jutzuy
  12. Juan Chacach
  13. Juilan Quina
  14. Melanio Jutzuy
  15. Lorenzo Quina
  16. Cristobal Tarton

Misc. Created Documents

  • Irrigation Project(docx)|(pdf) Memo on potential implementation for Agua Caliente. Would provide irrigation to farmers not currently attached to system.
  • Agua_Update. Information gathered by Peter in February of 2012.
  • We have photos from a trip to Agua Caliente that Cameron took. Click Here
    • username: mbi, pwd: ftpmbi

References

Technical Note. Contains useful tables to estimate delivery of ramp pumps. Hydraulic Ram Pumps A lot of useful links on Ram Pumps.
How Ram Pumps work. Williamson Ram Pump - Kevin Smith Steelworkers version. A promotional video introducing people to ram pumps.
Clemson Ram Pump. The details for constructing a ram pump as designed by the Clemson University.

Contacts/Potential Members

  • Michael Hrzic (mhrzic@hntb.com). Water Resources. Would be willing to provide feedback an hour at a time every once in a while.
  • Angie Kolz (akolz@whks.com). Member of Med City Chapter(in progress)