Solar Drip Irrigation [RE-wrenches]

[Ray Walters]

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Hi All;

I've been contacted by a local high school wanting to do a demonstration 
project. They're installing rain catch cisterns, and want to use solar 
power to run the pressure pump to the drip irrigation system. I'm 
picking up after another wrench who had to leave the area, his plan was 
to use a Dankoff Slow Pump array direct. It seemed that would not 
provide consistent pressure or flow rate for the system's emitters. I 
was considering adding a large pressure tank to the design, or going 
with a Grundfos MQ booster pump (similar to the SQE: no surge, no P 
tank, constant pressure) .  The irrigation guy says the MQs are way 
better for drip systems due to the constant pressure.  The problem with 
that approach, is we're back to a battery and inverter based system.  I 
believe the MQ can run on mod sine but I'm not positive about that either.
Any advice or experience  that the group has had will be as always 
invaluable and greatly appreciated.

Thanks in Advance,

Ray Walters


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