Id just use distilled h2o. Thats what I use to water all the time, even when I mix my ferts.
halfassedjedi Reviewed by halfassedjedi on . flushing with tap water time to flush, anybody have any problems flushing soil w/ ph balanced tap water? dont have the 75 gal ro needed and its been a couple years since i did it w/ tap. only 3 weeks to go and i'm concerned with chlorine.dont recall any adverse effects ...? Rating: 5