Our Solution
An efficient Grundfos solar pumping system along with a stainless steel and poly pipe bore column construction would meet the customer’s requirements.
Once the proposal had been accepted, the Dowdens Industrial Workshop began with the 18 x 270 Watt Solar Modules that were to be attached to 3 x 6 Module Fixed Post Array Frames. As an Authorised Grundfos Distributor, Dowdens Pumping Rockhampton was able to confidently recommend a Grundfos RSI Inverter together with the efficient Submersible Pump to be mounted and installed on this solar pumping system.
The system pumps directly from a bore to an elevated position on the Crystal Plains property where the customer is then able to gravity feed from their established tank farm to the greater majority of his property. On average the pump transfers 50,000L/day.
Operating costs were lowered via the system utilising a Grundfos Inverter with Sine Wave Filter Isolation Switch together with a tank level pressure switch – meaning the pump would start and stop automatically, only when needed. This automatic operation eliminated the need for the client to regularly drive to the bore to start and stop the pump. This increased pumping efficiency also saved on the overall cost of diesel to refuel the pump.
The Grundfos Inverter with Sine Wave Filter Isolation Switch, together with the Grundfos Submersible Borehole Pump were pre-wired on a custom-fabricated steel mounting frame to enable easy ‘plug & play ‘ installation. Dowdens supplied 5km of poly pipe for both the tank fill line and the gravity feed lines. The entire Grundfos RSI Solar Pumping System was designed, manufactured, installed and commissioned on time and within budget.