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Old 04-19-2012, 01:44 PM
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DA Quality Lawn & YS DA Quality Lawn & YS is offline
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Join Date: Sep 2007
Location: Rochester, MN
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Lowering pH of water to apply an organic fungicide

May seem like a simple question guys, but I have not had to do this before.
My water supply is almost dead neutral at 7.2 pH. Seems to work ok for my conventional weed control products (maybe a touch high but the control is good so can't complain).

However, I am going to apply some 1-2-3 NPP from ICT Organics to combat a fungal problem in a few resi lawns. Specified acidity of water to use with that product is 5.0-5.5 or slightly acid.

How do I lower the pH of my water for these apps? Is it as simple as adding some household vinegar at a set amount to get the desired pH?

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