Alright fellas, need some help on my water situation. Since I live in the Mountain West and our water is harder than the back of Lincolns head, I have been using R/O water from the grocery store. I am running 4 plants under my cfl set-up and we are about 30 days into flowering and They are drinking water like their is no tomorrow. I make it rain, so I go through about 8 gal's every 2-3 days.
I am switching to the 400w CMH this weekend and I am sure they are going to start needing even more water. I am adding Cal/Mag to their water to compensate for the R/O and was wondering if I would be able to mix 1/2 gal R/O with 1/2 tap water? Like I said, my water is extremely hard. I think it runs about 350ppm and the PH is pretty high, 7.0+ (using aquarium drops to test so not sure exactly). The R/O runs about 6.5.
By combining the 2, would it in theory cut my ppm's and the Ph? I would think the ppm's would be cut in half but what would the Ph do? would it decrease also. I have ordered a PH pen so I can get a more accurate reading to help with feeding them and so I no were everything is at.
I know I can get a R/O filter for around $100 but after the investment in the CMH set-up, that's not an option at this point. I also thought about a Britta pitcher but it just seems like it would not be able to keep up with the demand?
Any input would be appreciated.
Peace
Big