CannaBruh
Well-Known Member
You're trading off one set of possible problems for another, which can be a good thing if you think you can mitigate better against one set vs another.What about salt build up?
I use ProMix, coco will double my medium costs in my current setup.
But I want to get away from all that stuff , it’s dirty n gets every where .
Right now I’m thinking of using grow stones and rock wool croutons. And recycling the stone to cut the medium cost n mess .
I don't see salt buildup but I also run water only for the end week or so.
DTW requires that the amount of water to pass through the coco in order to reach the bottom roots and thus runoff is many times the quantity needed to water the same plants via bottom fed. I find you don't have to soak the whole coco medium when bottom feeding, the top roots go air and the bottom soaks up what it wants.
With DTW it's become obvious that overwatering is a problem for me in cooler temps. The plants do not use all that water. With bottom feeding the lowest roots don't dry out and the top of the rootzone can breathe.
I also find it way less hands on vs drain to waste.