While on the subject of lawn sprinkler systems...

Not that I'm really thinking of redesigning our sprinkler system, but out of curiosity I picked up RainBird's questionnaire/layout sheets to send in for them to design an appropriate system, and one thing struck me as very odd:
One is supposed to measure both the water pressure and the rate of water flow from a spigot, e.g., time how long it takes to fill a 5-gallon bucket. BUT is ours the only house where the existing sprinkler system is fed from a 1-1/2-in PVC pipe run from immediately after the meter, whereas the outside spigots are fed through 1/2-in. pipe beyond the pressure regulator?
What useful information would the pressure and flow rate measured at one of our spigots provide?
Perce
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On 6/23/2016 12:58 PM, Percival P. Cassidy wrote:

Here, most homes feed their irrigation system off of the household water supply -- a 3/4" line from the meter to the house then, typically, 1/2" pipe feeding the hose bibbs on the periphery of the house.
We run the 3/4" copper water line through a stop, then the master valve and antisiphone device into a PRV (*just* for the irrigation system -- the house has a separate PRV and stop), through a fine mesh/high volume filter into a 1" PVC that feeds the 19 valves + PRV's for each of the 19 zones (4 of these are actually valve-controlled hose bibbs).
[The PVC feeds the irrigation system in two directions (i.e., completely encircles the house) so the "far loads" don't suffer from drops in the ~250 ft run]
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On 6/23/2016 1:17 PM, Don Y wrote:

N.B. Most homes, here, don't have big irrigation loads and rely on *drip* irrigation -- much lower overall flow rates than "lawn sprinklers" that throw lots of water into the air (40% of which evaporates).
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On Thu, 23 Jun 2016 13:20:56 -0700, Don Y

Where is here?

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On 6/23/2016 7:35 PM, Micky wrote:

Center posted, as your comment was.
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Christopher A. Young
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