self watering tool - well designed - water tight no sealing needed - PET bottles

thingiverse

This is a thoughtfully designed watering aid for plants. It comes with various watering tubes that allow you to adjust according to your plant's needs. * The tubes come in different diameters (from 0.4 mm to 1.4 mm). * The tubes screw onto the cap and are watertight. * No support is needed, as the tube is detachable for printing without support. * The cap fits a standard PET bottle. * The cap does not require a seal. * The cap is watertight. You should experiment with the best-diameter tube for each plant, primarily depending on the potting soil rather than the plant's size. I usually print this using PETG, but other materials will work too.