Are you contracting someone to install or doing it yourself? If
contracting, your installer most likely already has a particular
brand/model that (s)he tends to work with so you'll need to talk to them
about what they plan to use.
My sprinkler system consists of 5 zones of rotors (Rainbird 3500 and
5000) for the lawn areas and 2 zones of a mixture of drip and
microsprayers for the landscaping and garden areas. Whatever you
choose, I strongly recommend you plan for future expansion. So install
an extra valve or two in each valve box. Extra valves are trivial to
add to your manifolds when everything is dug up but it's a devil to add
a valve to an existing box once everything is closed-up and buried.
Worst case is the extra valves never get used.
For your main sprinklers, you pretty much have 3 choices: rotors, impact
rotors or sprayers. Sprayers are the simplest...no moving parts...and
you can buy spray heads for various patterns. But for a given GPM and
PSI, they have lower coverage area than rotors so you'll need
comparatively more zones if you use sprayers. They're useful if you
have an odd-shaped rectangular area or if you want to spray your
shrubbery from afar. Rotors and impact rotors shoot a stream (some
shoot multiple streams) in a circular pattern. So they can cover a much
greater area for a given PSI and GPM. Impact rotors have pretty high GPM
requirements, though, so unless you upgrade your water supply line,
chance are you don't have enough GPM available to drive more than a
couple per zone. That's why most residential homes use non-impact
rotors. Non-impact rotors are also silent so your neighbors might thank
you for that.
Do...do...do install a drip system for your landscaping. Note that drip
tubing is not the same as the rubber soaker hose that you buy at box
stores (that stuff is crap). Drip tubing and drip emitters are
generally pressure-compensating so emitters near the end of a run are
guaranteed to output the same amount of water as emitters near the start
of the run.
On 08/13/2016 09:31 AM, Robert nogueira wrote:
> I'm planning on having a lawn sprinkler system installed. I've noted that
> there are several types of sprinkler heads and would like some input on which
> type is the best. Any opinions?
> Bob Nogueira
> Bob Nogueira
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