Since May 2016, I have been using an 5m3/h electric surface pump, fueled by a power generator. In July 2019, I was interested in BASE’s solutions. I then accepted to test a 4m3/h Sellande pump and I quickly noticed its assets.
It is of course more expensive but the solar solution soon becomes less expensive than the thermic solution, because of the gas prices. It is now possible to irrigate all day long, even when it’s cloudy. Before, it ran only 2h because of the power generator’s tank. The pump speed rotation is adjustable which allows to add a drip watering on a precise zone, without overpressure. Before it was impossible because only the max flow was available.
I have been using the Sellande pump for six months, with winter and summer sun. I vividly recommend solar irrigation.