NYC Tap water safe?

Grow Cycle
21

I hadnt heard that. Interesting

22

Hey @Shatter, I live in the Catskills, want some of my air, lol.

23

Since weā€™re talking about water here, I have a question. Iā€™ve been using an RO Buddie for a few weeks now after a suggestion from @Bulldognuts. Itā€™s been the easiest few weeks since I started growing. With the DI filter inline the PPMā€™s read zero, when I bypass it the reading is about 15. So this is perfect when Iā€™m feeding the plants, but my question is about when I want to give them a plain watering. Would I be better off mixing in some tap water, which comes out at about 285 now, or some cal/mag? I need the PPMā€™s to be just high enough to get a pH reading, plus Iā€™ve been told RO water will actually look to take in minerals. It doesnā€™t like to be naked, so it can steal nutrients from your plant if you feed zero PPMā€™s.

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24

In my last indoor grow i used cook county/ Chicago tap water with 500mg vitamin c. Let sit for 24 hrs and the harvest was awesome. Good luck and im going to follow this thread.

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25

Not really, Iā€™m not a down winder from smog, volcanoes, or atomic core meltdowns!

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26

I canā€™t really say if one would be better than the other. Since I started using RO water I have been just using RO water and cal-mag.

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27

Yeah, I think I like the cal/mag idea better because I know the PPM of my tap water, but I have no idea exactly whatā€™s in it.

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28

@Hellraiser just posted about this. He said that you should use cal-mag every time you water if you are using RO water.

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29

Thatā€™s good to know, thank you. I thought that was just for coco growers, but I read the thread and you are correct!

30

Iā€™m going to try some tap water and air stone overnight and see how it goes. Ppm was 40 from the tap. So Iā€™m hoping itā€™ll be okay

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31

Hi @CannaNewbie sorry to bump this old thread.
How did growing with nyc tap water work out for you? did you need to do anything with the water? are you growing in organic soil?

33

Ive been using NYC tap water to grow for 20 years, and never had an issue.
Ya could feed right from the tap or ya can let it sit for 24 hours so the chlorine evaporates.
I only let it evaporate if im making a compost tea in a 50 gallon barrel.