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Have choked back to 5 bar 72psi at wellhead. Result significant reduction in electric and no reduction in volume pumped over 24hrs. Pumping about 1 hr on 1 hr off to keep reservoir full. Still pumping at a faster rate than well can recover as flow slows after 30 minutes. When you say choke back...

Thanks for the advice. Choking back 1/3rd may not lead to it running 3 times as long as at present if it results in pumping water not air. Will try this first. Then may try a cyclic timer relay. If I can adjust flow to rate of well recovery in one way or another then I can use the reservoir as...

Lowara 16GS40/B 3-phase 4kW pump. This is rated at 8 to 22 m3/hr at 83 to 25 m head. Flexiline riser. 200’ down borehole. Pumping up to 18,000 gallon reservoir where there is a level switch. Pressure at borehole head while pumping is 2bar. We use 80 to 100 m3/day for a couple of farms and...