Given your information, your entire system would use 50gpm. That is not a lot of water. You could use a small gas powered pump to water the entire system at one time. Our 5.5hp Honda driven pump would supply 65gpm at 53psi. (If you divide the system into four zones you will only use 12.5gpm per zone. We have no pump that would deliver that small amount of water.) The pump I mentioned is only about $650.00. If you wish to go this route, feel free to contact our Pennsylvania office for a more up to date price on that pump, as well as your other supplies. Call them at 800-672-4700.

Thanks!

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: I have at least 1,500 trees of citrus wherein I
: want to put 2 button drippers each tree (4
: lit/hr per dripper). I want to divide the
: whole area into 4 sub zones to save on
: pumping cost. The area is flat. Can you
: recommend the pump size for this system? We
: don't have electric power here so I guess an
: engine driven pump is suitable.
: Thanks.
:
: