I always used to get crystal clear bio both before and after de-mething when I used a processor pump that was pretty weak.
Since moving on to much stronger pumps with eductors my bio either before or after de-mething is cloudy.
I have done a bit of research into this and the reason is that the agressive mixing caused by the pump/eductor combination mixes the bio/glycerol down to such a fine (molecular) level that it leaves suspended glycerol in the bio.
When I use an unmodified 1/2" eductor with the frankenpump (120) the nozzle velocity was calculated by someone on vod at 28 metres per second, the delivery line pressure was 71psi.
Even after drilling out the eductor to 8.5mms the pressure is now 34psi and flow is @65lts/min.
Having said all this, after water washing the product is crystal clear, if left to settle after de-mething it also goes clear after @ 1 week.
Bio Boy, I remember you bought a very strong pump (don't know if you use an eductor) so this might be your problem, the cloudyness will go either after washing or settling for long enough.
Someone once reported on infopop that it was possible to get the mixing too aggressive, but never said why. I wonder if this is the reason.