The Clarke PSV1A Water Pump is designed particularly for heavy duty applications. This robust, powerful water pump is ideal for rapidly shifting both clean & dirty water; in fact, it will move solid water borne objects up to 30mm in diameter! Therefore it's ideal for draining pits, sumps, ditches & footings etc. & it's made from tough, durable corrosion proof materials, & has a really reliable & low power consumption 230V motor, for cost effective long term use. It's also fitted with a float switch for automatic water level control, & an anti airlock valve too.