I don't get run off until I put about 3 liters through each plant and 4 plants takes about 12 liters so I have to make up two 10 liter watering cans dude, maybe I'm getting too much run off or some shit? I have to add the nutrients to my source water, then add PH down and test the EC and PH and then I have to do that twice for 2 different watering cans and then I have to feed them to my plants. It takes me at least 1 hour