On Feb 8, 9:36*am, RicodJour wrote:
On Feb 8, 9:20*am, "dadiOH" wrote:
dadiOH wrote:

Our water comes from our well. *When we built, we had sprinklers
installed...keeps the weeds healthy *

There are two sprinkler zones. *Each has sufficient outlets so that
the well pump runs constantly instead on-off-on-off etcetera. *It is
my understanding that this is good as it reduces wear and tear on the
pump.
I would now like to add a third zone but there would not be enough
outlets to keep the pump from kicking on and off while that zone is
active. *How is that situation normally handled.

Thanks for the replies, folks. *Unfortunately, adding to an existing zone or
running together *with* an existing zone aren't viable options for me
because in both cases it would decrease the throw of the existing zone which
I don't want to do.

Any other ideas?

Trader nailed it. *By playing with the number of heads on a line and
changing nozzles to adjust the flow rate you can balance almost
anything. *If you take heads off an existing zone, and add them to the
new zone so it has enough heads, then bump up the nozzles to higher
flow rates on the existing zone.

I don't have the link handy, but if you DAGS sprinkler irrigation
tutorial, you should get a really excellent sprinkler site (not the
best looking, but the best information) with step by step procedures
to help you tackle it. *It boils down to calculations, so you'll have
to know pressure (while running and not), flow rate, distances, number
of heads, and nozzle flow rates. *That's the starting point, then you
tweak with the nozzles from there.

Here's the tutorial on designing a system with a well:
http://www.irrigationtutorials.com/sprinkler04.htm

R