PCBuds
Well-known member
I decided to flush the window planter and reservoir to get an idea of what's going on in the planter.
The reservoir was down to less than half of what I originally had, and was reading 600 PPM at PH 6.25
I dumped the reservoir and mixed up 2 liters of solution with RO water, and a ¼ tsp each of Maxigro, CalMag, and Potassium Silicate solution.
The solution was reading 487 PPM at PH 4.20
After pouring the solution through the planter, the runoff in the reservoir was reading 1125 PPM at PH 5.75
I poured 1 liter of straight RO water through to bring the PPM down in the media, then the total runoff was reading 1105 PPM at PH 5.78
So, it looks like using RO water for my nute solution and not adjusting the PH, works just about right.
I'll water with just RO water for a week or two then flush everything again to see what the numbers are.
I figure that I've mostly got evaporation going on with very little transpiration so the PPM is rising, and the PH is rising because of the plants and perhaps because of the springtails munching on all the dead roots from the last plant.
The reservoir was down to less than half of what I originally had, and was reading 600 PPM at PH 6.25
I dumped the reservoir and mixed up 2 liters of solution with RO water, and a ¼ tsp each of Maxigro, CalMag, and Potassium Silicate solution.
The solution was reading 487 PPM at PH 4.20
After pouring the solution through the planter, the runoff in the reservoir was reading 1125 PPM at PH 5.75
I poured 1 liter of straight RO water through to bring the PPM down in the media, then the total runoff was reading 1105 PPM at PH 5.78
So, it looks like using RO water for my nute solution and not adjusting the PH, works just about right.
I'll water with just RO water for a week or two then flush everything again to see what the numbers are.
I figure that I've mostly got evaporation going on with very little transpiration so the PPM is rising, and the PH is rising because of the plants and perhaps because of the springtails munching on all the dead roots from the last plant.
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