Well I noticed yet another flaw in my flow rate calculations for my sump. The flow rate is about 10GPM but thats when its on. Its on about 17% of the time. Anyway, my actual GPM is 1.4. Which is a lot of water, but not enough to come close to powering a sprinkler system.
I'm going to either require a HUGE cistern (which I may just do) or investigate drip irrigation.
On the brite side, I didn't cut anything yet. Though I did dig a big hole :) Glad I'm single or I would be now...
CL