Rain guns for engine runs pump
Normally cheap and best method of Rain gun
irrigation is runs by electric power only. But in case electric power not available
means you can use diesel or kerosene engine operated small pumps to cover 75 to 100
feet radius. Due to mechanical power the efficiency is less than electric operation.
So you must try from below 30 feet depth water sources like ground level water pond,
tanks or 30 feet open wells for pumping the water. Here you can get minimum of 2.5
to 3 kg/cm2 pressure in rain guns.
For engine operated system you must select mini sprinklers in multiple nos or basic
model rain gun as single piece to get better irrigation and uniform wetting.For 3.5 hp
kerosene engine you can connect 20 nos of mini sprinklers or 50 nos of micro sprinklers or
only one no of mini rain gun with 60 feet radius coverage.
When compared to electric power total operating cost is more.
But in remote areas this is the only option for temporary sprinkling irrigation for
one or two time during drought seasons to save the crop from failure by water