Rain water

[Benjihad]

Is it ok to use rain water for watering? i heard some people use it. I just dont know how or want to take the time to ph test all my water so ill just use rain water instead?

[keeko]

you still might want to ph your rainwater. and i would make sure its not runoff from a roof or something

[Weedhound]

Don't.

http://boards.cannabis.com/grow-lounge/132200-using-rain-water-when-possible.html

[growbe]

Rain water rocks! I collect it and the plants given rain water always grow better then the ones that are not given it. You can post whatever you want on how some think it's bad. With the way I grow and how many years I have under my belt, no one will convince me to stop.
But to each his own.

[Eclipse1203]

Ph is an important factor in the water of your plants, many bad things can happen if you do not monitor it. One of the major problems is nutrient lockout, at higher Ph Iron, Manganese, Copper, Zinc, Magnesium, and Nitrogen get locked out. At a lower Ph Molybdenum, Calcium, Phosphorus, and Magnesium are your main issue lockouts.