Using Purified Bottled water for plant?

Purified water is basically filtered tap water. It will have a balls on 7.0 ph which IMHO is a bit high for cannabis. Get a ph meter and some ph up and ph down...around $20.00 for all 3 on ebay.
 
Don't waste your money. Just use tap water, but let it come to room temp if you can. That's all you need :)

Then check how hard your water is and adjust nutes accordingly
 
let it come to room temp if you can.
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