Well, its been a few days (busy working). I did a water change yesterday and kept the old water with nutrients for this project. It took a long time to get it primed again with old tank water. Lots of manual priming (pushing out air bubbles). (I've got a heater and no pump in the bucket as there is enough extra circulation already from the pump in there.)
http://i101.photobucket.com/albums/m...ps9f7166c4.jpg
After a gymnastics event with it, the air is gone (I think) and its dripping old tank water at about a drip a second. The rate was hard to get as the valve isn't obviously rated for such precision. You can maybe see a slow drop forming....
http://i101.photobucket.com/albums/m...psf2e9b2f8.jpg
I'm getting the Ammonia, Nitrites and Nitrate readings from the bucket of water. Just so we have something to compare against.
:-) Lets see if this thing works.