Flocculator has been specially designed for use in water treatment plants to correctly estimate the Dosing of alum and such other coagulants for treatment of water and sewage. In provides identical Test conditions for all samples. Illumination base consists of fluorescent tube mounted below translucent plastic plate to provide diffused cold light through floc samples. Flocculator consists of heavy duty DC DRIVE variable speed motor heaving speed from 20 to 180 RPM with built in speed control. Stainless Steel Stirring rods are provided with adjustable spacers to adjust the depth of stirring Paddles. The stirring shaft can be removed without disturbing other stirrers. The unit is supplied without beakers to work on 220230 Volts A.C.