Understanding the nature of water and how important it is to all life, you also understand why it is important to use 'clean' water in making your garden sprays or disease control mixtures.
In order for life to survive, it must have access to clean water. Many different types of bacteria, viruses, and many types of organisms use water as their main mode of transport.
Normally in nature, the good guys and the bad guys will fight it out, and who wins depends on the 'current' odds. What I have learn to do it to help shift the odds in the favor of the good guys!
"The best way to help Mother Nature is to get out of her way"!
The Invisible Gardener
Why clean city water? Because most cities add various chemicals to control bacteria. Usually chlorine but could be any other approved chemical
any of which will inhibit and severely reduce effective of any of your bacterial tea. You want
to remove this chemical from your water.
Here then are a few ways for you to clean your water!
Place water to be cleaned in a glass container. Allow to sit in sun for a few days. ok to use a bucket instead of glass.
You can buy a shower filter and use that to clean your water.