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Irrigation/100 series century plus hydraulic valve


The Racecourse i do grounds work for has an eight station system utilizing the 3" century valves running them hydraulically and some stations or sprinklers off a station stay on all the time - any idea how to fix ?

Hey Daniel, yes you need to rebuild the valves by installing a new diaphragm and possibly a new solenoid. go to, and this website will give you some direction on how to re build these valves. Good luck and have a great day.


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Jim Schaefer


Any question regarding sprinking systems,installation,repair, and trouble shooting.


I have been installing and repairing sprinkling systems since I was 15 years old. Have owned my own sprinkler system contracting business for over 26 years. It is basically the only job I've ever done, except for being a paper boy when I was young.

High School diploma and 3 years college credits.

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