This self-priming bilge and deck wash pump is suitable for delivering sea water. It is completely made of bronze and stainless steel. Due to its hard-wearing industrial motor a longlasting and reliable operation is guaranteed. Before it is run for the first time it has to be filled with water. Furthermore it is advisable to install a socket safety valve or a foot operated valve into the suction pipe. The pump is non-reactive to sand (particle size up to 2 mm). The model 4 E is totally maintenance-free due to the use of a freely running impeller wheel and a very modern axial face seal. The max. operating time is 1 – 2 hours.