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Thread: Question for hard water growers

  1. #11

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    Quote Originally Posted by Dupe View Post
    Cheers MC, not really, when I switched to oldtimers I read that people weren't watering to runoff with it (if thats what you mean) as it wasn't necessary with organics. Before though when I was on chemical ferts I did try flushing the soil through a few times during the grow but it didn't seem to help. Do I need to get loads of runoff then with oldtimer ?
    Even with organics water to run off.

    I had a similar issue (different but organic nutes) as soon as I started watering to waste the problem went...

    Worth a try if everything else has failed

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  3. #12

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    Quote Originally Posted by MrCannab1sir View Post
    I'll link the thread but I think it's bad ph. Have a look through this https://www.thctalk.com/cannabis-for...t-leaf-problem

    Summary, make sure ph is checked and corrected before water or feed. I had the issue with plain waterings so made sure ph was about 6.5 when watering. Used a new nute and that makes it go proper high so have to ph it on feed too now.
    Cheers for that. Ah man the old to PH or not to PH in soil conundrum Ive tried using the canna PH down citric acid stuff but it did nothing, maybe I didn't ph down enough.

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  5. #13

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    Quote Originally Posted by Herbitual View Post
    You could always try diluting your tap water with a low calcium bottled water?


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    cheers yeah maybe a good option but could get expensive + have to lug a load of water around all the time

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  7. #14

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    Quote Originally Posted by Herbitual View Post
    Also, doesn’t vinegar dissolve calcium?


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    Not sure, although I do know the citric acid I used is a natural chelating agent. Ive also tried TNC Bactorr S13 stuff as it has humic/fulvic acids but again, no luck.

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  9. #15

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    Quote Originally Posted by Blue61 View Post
    Do you run into problems the whole grow or more during flower?
    I think Jingo is on to something with the ph. Where I grew before we had hard water (7.9 ph) and like you I tried different soils.
    i have to say FFOF really seemed to make a big difference. I always ph my water down before watering and check the ph again after adding nutes and adjust if needed.
    Also even tho my water was hard I still had to add cal/mag.
    Yeah its always just when they just start flowering, from the top of the plant they start going yellow along wiht the stems going purple, then the spots appear & they limp to the end. Some strains cope much better than others however. Cheers but I dont think FFOF is available in the UK.

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  11. #16

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    Maybe....

    It’s time....

    To

    Go

    COCO!

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  13. #17

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    Quote Originally Posted by M_C View Post
    Even with organics water to run off.

    I had a similar issue (different but organic nutes) as soon as I started watering to waste the problem went...

    Worth a try if everything else has failed

    Sent from my SM-G900F using Tapatalk
    Yep got to be worth a go. How much runoff ?

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  15. #18

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    Quote Originally Posted by Dupe View Post
    Yep got to be worth a go. How much runoff ?
    Depends on pot size lol -but about 10% should be golden

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  17. #19

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    Quote Originally Posted by Blue61 View Post
    Do you run into problems the whole grow or more during flower?
    I think Jingo is on to something with the ph. Where I grew before we had hard water (7.9 ph) and like you I tried different soils.
    i have to say FFOF really seemed to make a big difference. I always ph my water down before watering and check the ph again after adding nutes and adjust if needed.
    Also even tho my water was hard I still had to add cal/mag.
    Interesting, so when you didn't add calmag did they show defs like my leaf pic?
    Last edited by Dupe; 17-07-20 at 12:19 AM.

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  19. #20

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    Quote Originally Posted by Vlad the Inhaler View Post
    Maybe....

    It’s time....

    To

    Go

    COCO!
    cheers vlad, I dont know anything about coco, does it deal with hard water better than soil ?

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