OK, so far I've spent about 30 hours in total trying to bleed my new loop with the Koolance res.

I'm using the "P1" mount (so the res on the left side). Photos of my loop here:

http://www.xtremesystems.org/forums/...d.php?t=268381

Problem is, since I started, I've made barely any progress at all. Once the loop was filled, I turned down the pump to minimise the flow rate. Although this seems to have worked, in actuality there are massive bubbles lurking everywhere and as soon as I turn up the voltage on the pumps they fly round the loop.

I then tried leaving it on the minimum flow setting for a while until I could no longer hear air bubbles. Then I would turn it up a bit, leave it, and turn it up again when the air bubble sound had gone. After about 12 hours of trying that, I'm still stuck on the "2" setting on my D5 pump. The bubbles just aren't going anywhere.

I tried tilting the case forwards, so that the inlet/outlet on my roof mounted radiator would be higher (bubbles in radiator would leave), but this causes a massive sudden increase in the amount of noise the pump makes, then it suddenly goes very quiet, with the flow almost stopping. Not good.

I then tried tilting it back about 45 degrees, so the res would be the highest, this quickly gets rid of the air bubbles in the pump, and it becomes quiet. I can still hear water sloshing about in the radiators though.

Any ideas on what I should do? Totally lost here.