Hydro Master mixing valve is designed for direct fitting on a detergent tank or container. The mixing valve mixes the right ratio of water and detergent to ensure that the pump always has the right ratio for the liquid being pumped. The mixing ratio is adjustable between 4:1 and 240:1 by switching to different coloured adapters included in the kit. Maintains a constant level of pre-mixed liquid via adjustable float and valve. Also suitable for microemulsions.