We have spent several days in the past two months modifying irrigation station "wiring". With the age of the system and subsequent old school philosophy of wiring techniques during that time, alterations and modifications can be a bit more time consuming than anticipated. The 1978 design specified many of the stations to consist of multiples of "paired" sprinkler heads. "Daisy chaining" as it is referred to by many is the connection of multiple sprinkler heads on one zone wire. To conserve on wire, the installation of these "chains" seldom followed the lateral pipe buried in the ground. The lack of splice boxes at the lateral lines and poor as-builts make tracing these wire paths a chore.
Over the past several years we have worked diligently to split or break the large chains of heads down to a manageable number for the hydraulics and programing of the central control system. This has improved our pressure at the sprinkler heads and reduced the "donuts" of dry turf in close proximity of the head that many members have shared "fond" stories of. We are down to addressing our final two zones operating (6) sprinkler heads a piece. Not only will I be happy, but the pump station flow ramp will appreciate the completion of this exercise as well.
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