I've got a few sacks of Carboxy Methyl Cellulose to clear, they will need to be collected from Reading, Berks. It mix's quite well, its what we were using on our Gunge Tank shoots for the past few years. We used to use an electric drill and plaster mixer attachment and didn't get any lumps. Looking for 150 per sack to clear them. Each sack will make around 1500 litres or more of a thickish gunge.