I have a pretty sweet RO system, but it isn't running right now, and hasn't been for a while. I have to wait until my friend has time to come fix it. So, for the past few months I've been growing with tap water. My tap water is 9.3 and 400-600ppm, it's been about 460 lately. I have no clue what is in it. I can go on the website, but haven't. My bloom tent grow has been tap water from seed. The last 3/4 of the grow before that was tap, too. My RDWC, all tap.
I've been using Dyna-Gro and came up with a dose that I use as standard now.
Here is my Bloom feeding schedule after about week 2 with my hard water:
5 gallon bucket full of tap water
9ml Pro-TeKt
9ml Bloom
4.5ml Foliage-Pro
4.5ml Mag-Pro
That usually takes me to about 800-900ppm
The pH is then about 6.8. I then pH it to 6 with my homemade pH down, and that usually adds about 30-40ppm
I then pour that into my dripper reservoir.
After week five I stop the Foliage-Pro.
When I think I'm about a week out I just use pH'd tap water. I wouldn't call it a flush, because there has to be plenty still to eat in the coco.
This time I am going to use their Dyna-Flush in the last week with the tap water. Based on how I have been dosing now, and looking at their schedule, I think I am going to do 10ml of it into 5gal.
My RO should be done in time for the competition. That's not good, lol. I will have the RO dialed in, but won't have feeding with the RO dialed in at all. I might run tap water in the comp, lol. I guess if I get it done early enough I can test it out at half dose of the schedule and see how it goes.
I don't think I have a shot at winning, but I don't want to get clowned on either. Hahaha