If concerned with your water quality, check online for your local water company's Water Quality Report. Should tell you exactly what ph it is, what's used to chlorinate it, what other crap is in it...

I was living in Vegas for a few years when I was first starting-out. The tapwater there is almost undrinkable and is definately stinky. I'd let it sit out overnight (offgassing the chlorine) and water the plants with it the next day. Never had an issue till we got our R/O unit repaired. The plants prefered the tap water, so I ended-up having to get the water from an outside spiggot. (not hooked-up to the R/O)

Water is 1/3 oxygen to begin with. But letting the water sit-out does lower the available dissolved oxygen. (an oxygen molecule not attached to another element or mineral) However, when you add the water to the soil, air (and oxygen) is pulled-down into the medium through a process called suction. Worrying about oxygenating the water prior to adding to the soil, is, IMHO...a waste of time and effort.

Interesting and informative article about water...:
Common Water Measurements, from USGS Water Science for Schools

Al things 100% similar, the shade or hue of a cannabis leaf can vary from strain to strain, and is controlled by recessive genes, I guess.
Rusty Trichome Reviewed by Rusty Trichome on . What type of water should i use?? What kind of water is best to use for plants? i have been using tap water and letting it stand for 24 to 48 hours before i use it and also so it can get to room temp..............can you use spring water? or can you use distilled ? but if you use theys do you have to add anything to them ? Or is tap water just fine enough? I dont know if my tap water is good or not when i have sprayed onto my plants after it dries i have noticed the leaves have a little white residue not alot just barley could Rating: 5