At the moment I water the plants every three days. They get about 800ml.
When I go on holiday, I can stay away for up to 14 days. I connect the pump with a time switch, this can also switch seconds. For example: pump on for 6 minutes and 30 seconds = about 1 liter per plant.
Construction irrigation system:
Pump (2 bar)
Water filter (fine filter)
PE pipe, polyethylene (high-density)
PE pipe connection <> Garden hose
PE pipe end plug
30 x pressure compensated single dropper, 7.8 l / h
30 x capillary, I use aquarium hose green 4 / 6mm, these must all be the same length
30 x droppers