It has not rained for 10,000 years so I have been unable to collect any meaningful rainwater. Is it okay to use distilled water for Paphs and Phrags an extended period (with fertilizer)? I don't have a RO system.
I have an RO/DI system. I have disabled the DI phase because I really don't need it and it was creating far too much waste water. I collect rain water but have run out all too many times to count. We just don't seem to get enough rain to stock up and then when the skies do open and there's a deluge... seems as if I'm not around to capitalize on the event. I've resorted to using the RO system I have but I can't always count on it because I am on a well and one does need a decent amount of pressure to run an RO system. The water pressure of my well fluctuates and there have been times that I could not eek out but a gallon of RO water in a 24 hour period of time yet there have been other times that I was able to get 10 gallons of water in the same time frame. Lack of adequate water pressure has resulted in me having to lug not 5-10 gallons of distilled water home but 50 to 100 gallons of water often times wiping out the shelves at several big box stores. I'm not a big person and loading the car and then unloading the car and hauling the water in the house is a big pain in the rear for me. It gets old real quick and isn't exactly the type of physical workout I want. Collecting rain water diverted into a barrel from a downspout can help but the RO system is probably your best bet if you are on city water or if you have a well that has enough pressure for the equipment to run properly.
One thing about distilled water, be careful that what you are buying isn't calcium fortified or that fluoride hasn't been added. Why they do that to distilled water is beyond me.