I know it’s important to avoid salt accumulation with TTF, which you would think could be an issue with earthboxes since they really don’t flush when bottom watered. I’ve started by putting the TTF straight in the watering tube, but am now concerned that the salts will eventually concentrate in the box.
So now I’m thinking to top water the boxes with a hose end sprayer / fertilizer mixer which could flush the salts through the soil, down into the reservoir, and out the overflow. I don’t use the plastic mulch topper anyway so this is easy to do.
Has anyone else been using TTF to top water earthboxes? Has anyone using it had issues with salt accumulation in EBs when adding it through the tube?
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