thought acid and coco were a good thing ??? how else you dealing with carbonates?
Have you advanced to the point where your testing the pH in the root zone? Or my personal and lazy choice of the run-off?
If like most, you only test the tank, then your getting a little ahead of yourself by trying to change the rootzone pH.
In soft water areas, you can almost forget the input pH. The coco will buffer it. As an example, I ran a RO water grow, using no adjustment. The feed went into the coco around pH4 iirc. But the rootzone and runoff were in range. The coco corrected the pH of my feed, as the feed was in no way 'stuck in its ways' unlike hardwater which has a pH much harder to effect.
Chucking bio on the surface of coco is making an uncontrollable pH adjustment. As a feed stuff, it will also bugger with what you wanted to feed them, and the cation ratio's in the coco. I fear you will be making tea's next, and recycling your dinner scraps into organic medium. Buying tie dye clothes instead of a white lab coat.
Growing plants in coco is really quite simple. If something is wrong, it won't take us long to find it and advise you. Nobody is going to say to top dress though. That will never be the answer.
So... what's up? Or are you just trying to make problems for yourself?
Have you advanced to the point where your testing the pH in the root zone? Or my personal and lazy choice of the run-off?
If like most, you only test the tank, then your getting a little ahead of yourself by trying to change the rootzone pH.
In soft water areas, you can almost forget the input pH. The coco will buffer it. As an example, I ran a RO water grow, using no adjustment. The feed went into the coco around pH4 iirc. But the rootzone and runoff were in range. The coco corrected the pH of my feed, as the feed was in no way 'stuck in its ways' unlike hardwater which has a pH much harder to effect.
Chucking bio on the surface of coco is making an uncontrollable pH adjustment. As a feed stuff, it will also bugger with what you wanted to feed them, and the cation ratio's in the coco. I fear you will be making tea's next, and recycling your dinner scraps into organic medium. Buying tie dye clothes instead of a white lab coat.
Growing plants in coco is really quite simple. If something is wrong, it won't take us long to find it and advise you. Nobody is going to say to top dress though. That will never be the answer.
So... what's up? Or are you just trying to make problems for yourself?
I see what you are trying to do now.
Off the top of my head aiming for accuracy an inline acidity doser followed by a mixing section. A filter would be cheaper to remove the alkalinity.
I wouldn't try your method (my capacity for experimenting is sadly quite low) but if I did I would start with a slurry test of the medium as mentioned and go from there.
No, the question is, would a small amount of organic matter such as peat or some nice soilless mix modify/buffer my PH from the tap which is at 6.8/7 in my coco so I can have nice fresh cool water straight from the tap without using a chiller....I think it's a matter of bite the bullet and try it myself.
I/we're trying to work out a way to water coco straight from the tap, a good topic no?
Why do want to water with cold water rather than the same temp as the root zone/room temp? What benefit is there?
Mate I’m trying to tell you, if you add peat to your coco it’s just a soilless mix. Coco has very specific physicochemical properties and if you want the benefits you need to fertigate each watering at~pH 6, multiple times per day.
Your real question is “how can I grow with coco, osmacote and tap water” and I don’t think it can be done.