property:development:services:Water Pumps
Summary
- Height differences:
- Wizards' 233m
- Farfield 343m (+110)
- Knowhere 354m (+121)
- Ridge 375m (+142)
- Crazy Goat 400m (+167m)
- Top of picnic 435m (+202m)
- Pipe:
- Width:
- Currently have bluelines with Outer Dimension (OD) of 50mm. ID appears to be 40mm.
- The closes I see from chart is:
- PD12.5 which has OD=40, ID=32.3
- Others blue line dimensions are:
- OD=50.2 ID=40.25 – so that seems to make sense.
- 16PD = OD=50.2mm ID=38.35mm
- 20PD = OD=50.2mm ID=35.65mm
- But not sure if it's the OD or the Interior Diameter (ID) will determine its coupling with pump.
- It should probably be the outer dimension of the steel ring (which would be approx 40mm)
- And yet, the pump specs say the outlet is it is “1.25” outlet“ which is 31.75mm. That isn't what I'm seeing.
- Colour:
- Small detail first: you will want black so they don't stick out a mile. So consider something like Iplex Blackline Rural.
- Type:
- They need to stand up to series pressure.
- But as you would see if you filled a condom with water, it's at the bottom that has the most pressure, not the top.
- So you want as much low pressure (low cost) as you can get your hands on, and increase pipe wall thickness as you go down.
- Choices are:
- MDPE PN12.5 = 12.5 bars max = means a max of 127m (from elev. 435 at the ery top - (say: 100m) to elev 335, just above Artists)
- HDPE PN16 = 16 bars max = max of max 163.1m (435m - (say: 155m) - from 335 to 300m elev, just below artists, no the next plateau)
- HDPE PN20 = 20 bars max = max of 200m height (that's the pipe you want at the bottom part, from elev 300 down to 233 at wizard's rock)
- Length:
- Remembering that vertical at a slope (eg 30 degrees) is something longer (the hypotenuse), and that's how many reels to get.
- Manufacturer:
- From Ibex, consider the Rural black line:
- Dimensions:
- The dimensions will be determined by the outlet of the pump. For example:
- 1” outlet = 25.4mm implies selecting DN32 with OD32 and ID26.2
- 1.5“ outlet = 38.1mm implies selecting DN50 with OD50 and ID40.8
- 2” outlet = 50.8mm implies selecting DN63 with OD32 and ID51.6
* Estimations:
- 1 bar is approx. 10m
- 1 bar = 100,000 Pascals or Pa
- Head (e.g.: 180m) x 1.5 gives the psi required (it's actually H/10m=bar then * 14.5038 psi per bar).
- Pressure Nominal (PN) = bars.
- So a Pipe that is 12.5PN can handle 12.5 bars. so it can a handle little more the 125 meters…
- But since pumps often talk about psi, you have to 1.5 it to get to psi required from pump.
- so to go up 180m you need 270psi or better.
- Let's say 300psi so its not straining/overheating/giving minimum flow.
* Batteries:
- You don't need batteries. You have a water battery - ie the tanks.
- There are pumps that can do it:
- Plunger Pump:
- React2: great, can go even higher, but the issue is that it is pricey (2024: $3,550.00)
- Screw pumps:
- 160m - but even if it could go to 167, for $50 more, get something that won't have to run at full boar/low trickle and possibly burn out.
- 180m:
- https://www.aliexpress.com/item/1005003431986390.html#nav-specification (has picture of solar panels)

- It's advantages is that there is a little extra energy for friction, etc.
- The downside is that it does need quite a bit of power.
- 1200-1300W @ 72V.
- You need 4 average 18V 240W panels in series to boost volt from 18V to 72V,
- and you need them in parrallel to get to the right W (so 8 x 200w = 1600W which is far over the min 1200W).
- Not sure if it can be 6 x 12V in series of 200W would do the trick. To research.
-
- HYBRID SOLAR PUMP 3HP AC/DC AUTO-SWITCH SS304 Impel 4“ Submersible Pump Max head 238m Max Flow 7T/H Model: 4JSC7-238-D220-2200
- Can do: 270M head!
- 4000Litres/Hour
- Requires DC80-DC430V, 2200W
- “1.25Inch” = 31.75mm
- As for other fittings:
- Rings;
- Grip rings:
- End cap:
- Straight:
- T fittings:
- Elbow:
- Downsizing from 50 to 40:
- Valves:
- Shutoff valves:
- Foot valve:
- Tank Alertws:
- Tank Top hose:
- Pressure reducer 40mm