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Can I use tap water for cannabis?
Yes, but check the pH first (should be 6.0-6.8 for soil). If your tap has chlorine, let it sit out 24 hours. If you have well water, test the PPM/EC — very hard water can cause issues. Most city tap water works fine with pH adjustment.
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4 Comments
Seedling6mo ago
Started with the same setup. Worked great for my first autoflower from Royal King Seeds.
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Grower6mo ago
Also check your pH! So many problems trace back to incorrect pH.
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Expert Grower6mo ago
Bookmarking this for reference. Super helpful for beginners.
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Grower6mo ago
Can confirm this works. My first grow had the same issue and these fixes solved it.
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