Anybody with pH utensils do me a solid!

[Cyclonite]

I would go with a drop, I use 10-15 ml to drop my 15 gal reservoir 1 point. So I guesstimate around .7ml per gallon...5ml is a teaspoon. Distilled water is better than R.O water period. You need to add cal-mag to both.

Perfect distilled water in a perfect world has a PH of 7 there is many variables though...normally it will be more acidic from picking up atmospheric gases I would say its normally closer to 6 than 7.

I use GH PH down BTW....but I still would wait. If you dont id bet on more harm than good.

[latewood]

I'D STEER AWAY FROM DISTILLED WATER.

IT HAS NOTHING LEFT IN IT.

NO MINERALS, NO TRACE ELEMENTS, NOTHING.

GOOD LUCK

OK...Advanced Nutrients and all growers who use ROwater are idiots I guess! HUH?

You start with niothing and add the "correct" things. geeezzzzzz

[latewood]

If you are using GH 3-part then 3-part has buffers...And If you put the correct amount of 3-part in distilled water you will be very close to *5.8ph which is the correct ph for hydro.

*I propagate w/tap water from my well, and do not adjust the ph. If you have no roots...Then you cannot hurt the plant with normal water.

So, If you are using just the water for clones or seeds...I would say...Don't add phdown

Otherwise, if you are adding nutes...what nutes? are you using it for?