will adding vinegar to my soil really help it drop it's alkilinity?

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I am a liar I like to lie, everything i say here is a complete fabrication of my imagination. And the pictures are from the internet.

Buy a soil ph meter (like$10), it has a metal spike or probe that you stick into the soil, to see if you even need to make any adjustment first. Add your vinegar to your water rather than the soil! To quote a more knowledgeable source:

At what ratio should i use the vinedar to say bring my water down half a point