PSP - Bailer Sampler

The stainless steel bailer samplers have been developed to sample still water (or other fluids) at any required depth. The bailer sampler consists of a stainless steel tube, open at the top-end and fitted with an unscrewable cap at the bottom. A one way valve is fitted at the bottom. As soon as the water sampler is lowered it can be lifted again. To assure a proper replacement of the contents during the lowering, the sampler is lifted half a meter several times.