Fertilizer brown stains on concrete.

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Old 05-24-2021, 09:30 PM
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Default Fertilizer brown stains on concrete.

I fertilize some plants few days/ weeks ago, I can’t remember when? I guess I got some on concrete. Had the big brown rusty looking stains. So I got out the DEPS concrete cleaner. Didn’t work, not even straight out of the bottle. so I had some CLR, again scrubbed didn’t do nothing. Started looking for product that might work. Didn’t want to spend 18 bucks for 6 once’s or so, plus said you may have to apply couple times.

Had couple old lemons in bottom of fridge. Why not? I cut them in half and scrubbed the dark brown spots. Pressure washed and walla!!! The spot was completely gone.

So I brought half dozen of lemons for 79 cent piece and removed all the brown rusty spots.
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Old 05-24-2021, 09:45 PM
Jima64 Jima64 is offline
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Some lawn and shrub fertilizers have iron in them, iron-ex is one and chela mix is another. Hard to remove.
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Old 05-24-2021, 09:57 PM
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Originally Posted by Jima64 View Post
Some lawn and shrub fertilizers have iron in them, iron-ex is one and chela mix is another. Hard to remove.
Yep, that’s what left brown spots, the lemon took them right out, if I hadn’t seen it wouldn’t do believed it. I should of took pictures but didn’t think to.

Last edited by Topspinmo; 05-25-2021 at 05:52 AM.
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Old 05-25-2021, 04:18 AM
RICH1 RICH1 is offline
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Try dapping the stain with THE WORKS toilet bowl cleaner ! It removes Iron stains... I use that stuff on everything....
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Old 05-25-2021, 05:51 AM
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Try dapping the stain with THE WORKS toilet bowl cleaner ! It removes Iron stains... I use that stuff on everything....

Hadn’t thought I’d that? But the lemon worked, hopefully I’ll be more careful next time. Thanks.
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