[Adnuces]

Well after fiddling with this thing for abount anhour a few points.

1. The air intake tube was blocked and I had to take the pump apart to ensure that this little wee tube was inserted far enough to draw air into the pump. Finally got air moving through the chamber

2. This thing produces a million microbubbles back into the tank and more between the joints. I ended up using two of the bubble filters and managed to reduce the micro bubbles to a minimum.

3. This thing separates very easily when knocked and takes a bit of work to get positioned height-wise in the tank/sump.

Plus side:
1. It is very very quiet
2. It is compact and takes hardly any room in the tank. I have it in the main tank of my 10g. The power head I have in there is bigger.
3. It is inexpensive and if it works out it is a pretty good buy though it doesn't replace regular water changes.

Altogether I probably worked an hour at getting this thing working half decently. I woke up this morning to a full cup of foam in it. So it is producing foam which is a good thing. Now to see if it pulls any gunk out of the water. We will give it a week then re-assess the goods