"Debug" my lawn water system, repairs sprinkler valve

Discussion in 'Plumbing and Drains' started by zhoufang1, Dec 10, 2018.

  1. zhoufang1

    zhoufang1

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    It has been a few weeks since the first section of the watering system did not work. The first section grass slowly withered. It seems the sprinkler valve did not work. I was told that the metal based sprinkler valve normally is not easy getting damaged. unlike plastical material made sprinkler valve. As I use digital multimeter to measure the resistance value for each section from water controller on the wall, the resistance R in the section one is almost zero. I realized the solenoid kit may get short circuit. I bought a new one in about 13$ and replaced the old one. Finally it works. Instead of replace whole sprinkler valve I just replace the solenoid kit.

    see following chart:
    1. removed "bug", the old solenoid kit
    IMG_0386.JPG
    2. sprinkler valve with new solenoid kit

    IMG_0385.JPG

    3. digital multimeter and lever-nut, wire connector
    IMG_0379.JPG

    4.controller
    IMG_0381.JPG

    The tools and components I used are as following:
    1. Digital multimeter which was bought at Home Depot (https://www.homedepot.com/

    search digital multimeter)
    2. small vise bought from Amazon

    3.3. Lever-nut, wire connectors from amazon
    https://www.amazon.com/Lever-Nut-Co...=merchant-items&ie=UTF8&qid=1544378443&sr=1-1


    The root cause for the short circuit of old solenoid kit may be that the solenoid kit gets wet when it is raining...??What else could possibly cause the problem?
     
    Last edited: Dec 10, 2018
    zhoufang1, Dec 10, 2018
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  2. zhoufang1

    Silentrunning

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    Location:
    Warrenton, North Carolina USA
    My guess is that you are right about moisture being the culprit. Was there moisture present when you removed the solenoid? Is there a way to waterproof these components?
     
    Silentrunning, Dec 10, 2018
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  3. zhoufang1

    zhoufang1

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    It might be during rain day.
     
    zhoufang1, Dec 10, 2018
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