property:development:tools:hydroseeder:home

Property:Development:Tools:Hydroseeder

Summary

Intro

Petrol motors are both under-utilised and relatively expensive. So best that the design permits decoupling of pipes etc. to change use.

The first use that comes to mind in a rural context is being usable for fire-fighting where the fire-brigade will take too long to get there before it's all gone.

However, it's critical to understand first that a trash pump is a totally different pump than a high pressure pump. Fire fighters need real pressure pumps. Using a trash pump to do the job means you can't spray as far - which therefore means you have to get closer to the fire. In civvy clothes, that's not safe or even possible when the fire really gets going.

Therefore, while you should be able to detach everything from a pump to reuse it for something else, and you may use it to assist with putting out a fire, it in no way removes the need to get a second pressure pump to do the main work.

Therefore, the motor choice comes down to whether you need a trash (3“) pump or semi-trash pump (2”) and go from there.

After much hesitation, I'm going for a 2“ semi trash pump for a couple of reasons. Primarily so I don't have to downsize from 3” to 2“ before I put a ball-valve on it and flexi PVC back to a solid PVC back into the tank via the lid which has a 2” bung opening in it. Probably will regret it if I ever get into fossicking.

While the NZFD will mandate the availability of 45,000 litres (eg. two 30k tanks linked, with only 15k used for household use) and a very expensive butterfly valve + storz connector + foot stand set.

Secondly, Firefighters use 4“ suction hoses (because they don't compress when sucking) that are wide so as to reduce friction to move a lot of water at once. That's Big flow. And the coils are Big too since they can't be collapsed. So one has to wonder if going up to the full 4” for firefighting is going overboard/too much for hydroseeding, in which case, reduce to 3“ or even 2”. Would 2“ still save a house?
According to chatGPT, FENZ commonly uses 38mm (1.5”) and 64mm (2.5“) hoses for standard firefighting. However, for a private rural setup: 38mm (1.5”) hose is a good balance between water flow and handling ease.

A bit of a Bummer. Since I have 1-1/4“ ID everywhere.

Also, the pump should be (ideally 400+ L/min at 700-900 kPa) and fittings compatible with Storz or BSP thread, depending on what FENZ uses in your area. That's about 7-9 bar (70-90m head).

Buy List #2

F1-1/4 C1-1/4 E2

  • [x] IBC Connection:
    • [x!] Valve (plastic, S60x60→M50:DN50)
    • [x!] Camlock (HDPE, Type:A, M50:CL→F50:BSPPT)
  • [ ] Hose: (from IBC base to Pump)
    • [x!] Camlock (HDPE, Type:C, F50:CL→M50:BARB)
    • [x] Collar (50)
    • [ ] Spiral Suction Pipe (50:ID, 1m)
    • [x] Collar (50)
    • [x!] Camlock (HDPE, Type:C, F50:CL→M50:BARB)
  • [x] Pump:
    • [x!] Camlock (HDPE, Type:A, F50:BSPPT→M50:CL)
  • [x] Hose: (to Disconnectable Tee)
    • [x!] Camlock (HDPE, Type:C, F50:CL→M50:BARB)
    • [x] Collar (50)
    • [ ] [Spiral Suction] Pipe (50:ID, 1m)
    • [x] Collar (50)
    • [x!] Camlock (HDPE, Type:C, F50:CL→M50:BARB)
  • [ ] Disconnectable Tee:
    • [x]??? Camlock (HDPE/Steel:304, Type:A, M50:CL→M50:BSPPT)
    • [x!] Tee (Steel:304, F50-F50-F50)
    • [x!] Camlock (HDPE/Steel:304, Type:F, M50:CL→M50:BSPPT)
    • [x!] Camlock (HDPE/Steel:304, Type:F, M50:CL→M50:BSPPT)
  • [ ] Valve 50:
    • [x!] Camlock (HDPE/Steel:304, Type:B, F50:CL→M50:BSPPT)
    • [x!] Ball Valve (Steel:304, F50-F50)
    • [x!] Camlock (HDPE/Steel:304, Type:B, F50:CL→M50:BSPPT)
  • [ ] Adapter:
    • [x!] Camlock (HDPE, Type:B, F50:BSPPT→M50:CL)
    • [x] Reducer: (Steel:304, M50:F32)
      1. [x!] Camlock (HDPE, Type:F, M32:BSPPT→M32:CL)
  • [ ] Valve 32:
    • [x!] Camlock (HDPE, Type:B, F32:CL→M32:BSPPT)
    • [x!] Ball Valve (Steel:304, M32-F32)
    • [x!] Camlock (HDPE, Type:F, M32:CL→M32:BSPPT)
  • [x] Hose (from Tee to Sprayer):
    • [x!] Camlock (HDPE, Type:C, F32:CL→M32:BARB)
    • [x] Collar (50)
    • [ ] Hose (Flexi PVC, 10m)
    • [x] Collar (50)
    • [x!] Camlock (HDPE, Type:C, F32:CL→M32:BARB)
      - [ ] Sprayer:
    • [x!] Camlock (Steel:304, Type:F, M32:CL→M32:BSPPT)
      1. [x!] Ball Valve (Steel:304, F32:BSPPT→F32:BSPPT)
      2. [x!] Ball Valve (Steel:304, F32:BSPPT→M32:BSPPT)
      3. [x] Adapter (Steel:304, M32:BSPPT→M32:BSPPT)
      4. [x] Connector (Steel:304, F32:BSPPT→F32:BSPPT, 20cm long)
      5. [x] Reducer (Steel:304, M32:BSPPT→F15:BSPPT)
      6. [x] FanSpray (Steel:304, M1/2”:BSPPT→65200)


      - [x] Hose (from Tee to IBC Top):

    • [x] Camlock (HDPE, Type:C, F50:CL→M50:BARB)
    • [x] Collar (50)
    • [ ] Spiral Suction Pipe (50:ID, 2m)
    • [x] Collar (50)
    • [x] Camlock (HDPE, Type:C, F50:CL→M50:BARB)



      - Misc: Adapter: Steel:304, M50:BSPPT→M50:BSPPT Ball Valve: Steel:304, M50→F50 Ball Valve: Steel:304, M1-1/4→F1-1/4 E2 F1-1/4 C1-1/4 A2 32:BSPPT→32:BARB x2


Buy List

Get 30m of 1-1/4“ (32mm) pipe from Irrigation Express. Can always cut it and put connectors on it to extend it. Or use the excess elsewhere.

Other

* 1 gallon = 3.9 l/m, so 30 gallons per minute = 120 l/m = 2 l/sec. That's a lot.

Sources

* https://www.youtube.com/watch?v=-iJLzuB3KHY * https://www.vacuhose.com/veejet-hydroseeding-brass-flat-fan-spray-nozzles/ * https://turboturf.com/hydroseeding-nozzles/ * https://www.hnozzle.com/advanced-nozzle-technology-for-hydroseeding-excellence/ * https://www.etrequipment.com/product-page/1-1-4-hose-hydroseeding-nozzle

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  • Last modified: 2025/03/22 22:38
  • by skys