action, Racefan is right on to help stabilize water temp> Is your H20 being stored in your grow room? How many gallons do you hold at one time? do you have temperature fluctuations of a 20-30 degree difference?
For my indoor vegatative stage grow area, the H20 is in 1 gallon jugs store overnight to room temp, that is optimum, at times I just hit the tap and water from that> Yes I know this sounds crude to water from tap, and no PH testing, but I have Mtn fresh Spring water from my tap> just storing h2o in your room overnight to acclimate to that temperature has worked for me many years>and cost effective> I would not let H20 sit for over 4 days before using it> a chance for a bacterial growth may occuur.
Again, what is the temperature fluctuation difference of your area in a 24 hour period?
For my indoor vegatative stage grow area, the H20 is in 1 gallon jugs store overnight to room temp, that is optimum, at times I just hit the tap and water from that> Yes I know this sounds crude to water from tap, and no PH testing, but I have Mtn fresh Spring water from my tap> just storing h2o in your room overnight to acclimate to that temperature has worked for me many years>and cost effective> I would not let H20 sit for over 4 days before using it> a chance for a bacterial growth may occuur.
Again, what is the temperature fluctuation difference of your area in a 24 hour period?