No, like I said, if your water is fine to start with, it will be fine,
When brewing compot tea, your water will acidify as it brews as the microbes eat the food. Just like fermenting and activating EM1.
In organics, the pH of your water is not as important as it is using non-organic nutes. Using salt based nute, the water has to be within a certain range for the plant to be able to take up nutes. If not in that range, the plant can't take them up. Different chemical nutes have certain ph levels where it will get locked out and unavailable to the plant.
In organics, the microbe make the food available to the plant.
That's a very simplistic answer, but you should get the reasoning behind it.