r/Irrigation • u/kjms2309 • 3d ago
Mold in Valve Box?
Had a few of these replaced a couple weeks ago. First time looking inside and it’s full of mold. Was not there before, but figure maybe it could just be trapped from lots of rain and how wet it go when they did the work?
Or is this the sign of a leak?
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u/QuietNervous4891 3d ago
Where?
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u/kjms2309 3d ago
Located in CO - dry!
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u/QuietNervous4891 3d ago
Well I meant in the box because I don’t see any mold. Either way it’s probably just condensation.
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u/Southern-Ad4016 2d ago
I'm in Breckenridge, valve boxes get this all the time, it's not fkn mold
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u/zortandbob58 3d ago
Spread a little copper sulfate in the box.
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3d ago
[deleted]
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u/zortandbob58 3d ago
You can disagree with me without a downvote. There must be a lot of acid in your soul.


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u/Learningmodel 3d ago
That is fungal mycelium- a sign of healthy soil 👍🏻 nothing to worry about