Saving on the Cost of Perspex Liner Used in Sediment Coring Operations

The use of polythene tube inside the expensive perspex liner in sediment-coring operations helps avoid longitudinal splitting of the perspex liner so that the latter can be repeatedly used. The merits and demerits of such a practice are discussed. After weighing the pros and cons, it is found that the use of polythene tube brings down the recurring expenditure on perspex liner practically to nil and at the same time it offers many advantages.