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05-16-2019, 03:02 PM
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Sage
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Join Date: Mar 2008
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Quote:
Originally Posted by DAVES
Ferrous oxide, essentially rust, is not the only iron source used in fertilizer. Iron sulfate comes to mind and I'm pretty sure there are others. Yes, any of them will leave stains on cement.
That is not at all the problem or the cause as the stains are clearly where the sprinklers hit and there is no, or should be no connection between your plants and chemicals you apply and the water system. The reason why homes that use potable water are their lawn, must have a back flow preventer.
My question was I and many others use this partly processed water and it hits stuff like veggies and fruits you may be growing.
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is iron in fertilizer bad for you - Bing
what causes rust stains on the driveway - Bing
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