both the functions of wet and dry operation otherwise the result can be a container full of almost MUD which becomes difficult to empty and will be detrimental to performance. All machines are wet or dry and the change from one to the other is designed to be simplicity itself exchanging a dry filter for wet safety float valve and a change of floor nozzle, or vice versa.
Although twice the capacity we have added a folding handle design allowing easy movement when in use whilst also allowing compact storage.
