I've CWE'd paramol many times, and have often worried about the cloudiness of the solution. I've noticed that if I let it filter long and slow, using only 1 or2 containers and filters, and giving it hours to filter all the way through, rather than doing multiple small quantities to speed things up, the solution tends to be much clearer and more 'watery.'
But even when the solution's been milky-white, there's been a ton of APAP left in the filter. Results have been so variable, though that I do wonder if they've changed the formula. Basically, if you have any other source of opiates, cwe's are best avoided: advice I've ignored myself, more often than not, but have since learned that the most common uk coffee filters - Melitta brand - are said to be full of large holes. Don't get me wrong, I love DHC (prefer it to morph), but the high that can be had from cwe'ing paramol, even with promethazine to help it along, just isn't worth the risk of liver damage, for only 7.5mgs dhc per tablet.
It takes perseverance to find alternatives other than pods, H, or tramadol, all of which have maor drawbacks - but there are other forms of codeine/dhc available in the UK, if you're prepared to look. When they can be found, 30mg df118s are cheap, - actually more expensive, mg for mg, than paramol, but don't tkae hours of prep or run the risk of liver damage.