Okay sweet I'll follow your guide by every watering do you mean when the soil ha dried again?Same size as me.... So I'd run about 10L of plain water through that pot initially.. Let it dry for a few days until it's light.. Then about 5L of plain water every watering after that.. Check your run off.. After a couple of weeks of that caper your medium & run off should be pretty clean..
:Sharing One: