The water problem has been largely resolved. One way valves were installed to ensure water is delivered smoothly to the water tanks. The drippers remain a problem as it is easily dislodged by the grass cutting activity. And in this way, much water gets lost. This requires further trouble shooting. It may be that the drippers have to be changed or elevated. But for now, the pumps are working well and the water tanks can be filled within 4 hours of pumping.
The alternative pump with a 11m deep tube well can only fill up 250 gallons of water in 20 minutes before the water level drops. The replenishment rate may take an hour to push back the water to pumping levels.