I measured my run off, it was actually closer to 2L, so now I'll feed half a mix instead, I've been wasting nutes. Meh! The run off from 2L was +-150ml. And she was happier with that 3am feed @IanK
This is what my watering thingie looks like... The air displaces the water. Airpump is mounted in the box on the top of the cab, the airline runs down into the bottle, there's another line in the bottle that goes to my "sprinkler"
The run off goes into the saucer, down the pipe, the pipe goes out the cab through the vent and into a ice cream container. No mess, no fuss. I'm thinking of making another one to dispense the nutes.